Using Performance together with Remote Config impedes the activation of Remote Config remote values 

### [REQUIRED] Step 1: Describe your environment

  * Xcode version: 12.3
  * Firebase SDK version: 7.3.0
  * Installation method: CocoaPods
  * Firebase Component: Remote Config, Performance

### [REQUIRED] Step 2: Describe the problem

#### Steps to reproduce:

- The Remote Config is set up in `func application(_:didFinishLaunchingWithOptions:)` to activate the currently fetched remote values and after that fetches new remote values to activate at the next app start.
- This means that from the second app start the activation method should activate the fetched remote values.
- When FirebasePerfomance is also installed, the fetching process succeeds as before but the activation process does not work anymore as expected.
- The `activateWithCompletion` completion handler gets called but its `changed` property is always `false` and calling `config.allKeys(from: .remote)` always returns `0`. This suggests that there are no remote values to be activated but there should be because the fetch completed successfully. 
- I could successfully fix this behaviour by removing `FirebasePerformance`.

#### Relevant Code:

```swift
func setupRemoteConfig() {
    let config = RemoteConfig.remoteConfig()
    config.setDefaults(fromPlist: "RemoteConfigDefaults")
    config.activate(completion: { changed, _ in
        if changed {
            config.allKeys(from: .remote).forEach { key in
                if let value = config[key].stringValue {
                    UserDefaults.standard.setValue(value, forKey: key)
                }
            }
        }
    })
    config.fetch(completionHandler: nil)
}
```

#### Podfile:

<details><summary>Podfile.lock</summary>
<p>

```
PODS:
...
  - Firebase/AdMob (7.3.0):
    - Firebase/CoreOnly
    - Google-Mobile-Ads-SDK (~> 7.66)
  - Firebase/Analytics (7.3.0):
    - Firebase/Core
  - Firebase/Core (7.3.0):
    - Firebase/CoreOnly
    - FirebaseAnalytics (= 7.3.0)
  - Firebase/CoreOnly (7.3.0):
    - FirebaseCore (= 7.3.0)
  - Firebase/Crashlytics (7.3.0):
    - Firebase/CoreOnly
    - FirebaseCrashlytics (~> 7.3.0)
  - Firebase/Functions (7.3.0):
    - Firebase/CoreOnly
    - FirebaseFunctions (~> 7.3.0)
  - Firebase/InAppMessaging (7.3.0):
    - Firebase/CoreOnly
    - FirebaseInAppMessaging (~> 7.3.0-beta)
  - Firebase/Messaging (7.3.0):
    - Firebase/CoreOnly
    - FirebaseMessaging (~> 7.3.0)
  - Firebase/Performance (7.3.0):
    - Firebase/CoreOnly
    - FirebasePerformance (~> 7.3.0)
  - Firebase/RemoteConfig (7.3.0):
    - Firebase/CoreOnly
    - FirebaseRemoteConfig (~> 7.3.0)
  - FirebaseABTesting (7.3.0):
    - FirebaseCore (~> 7.0)
  - FirebaseAnalytics (7.3.0):
    - FirebaseCore (~> 7.0)
    - FirebaseInstallations (~> 7.0)
    - GoogleAppMeasurement (= 7.3.0)
    - GoogleUtilities/AppDelegateSwizzler (~> 7.0)
    - GoogleUtilities/MethodSwizzler (~> 7.0)
    - GoogleUtilities/Network (~> 7.0)
    - "GoogleUtilities/NSData+zlib (~> 7.0)"
    - nanopb (~> 2.30906.0)
  - FirebaseCore (7.3.0):
    - FirebaseCoreDiagnostics (~> 7.0)
    - GoogleUtilities/Environment (~> 7.0)
    - GoogleUtilities/Logger (~> 7.0)
  - FirebaseCoreDiagnostics (7.3.0):
    - GoogleDataTransport (~> 8.0)
    - GoogleUtilities/Environment (~> 7.0)
    - GoogleUtilities/Logger (~> 7.0)
    - nanopb (~> 2.30906.0)
  - FirebaseCrashlytics (7.3.0):
    - FirebaseCore (~> 7.0)
    - FirebaseInstallations (~> 7.0)
    - GoogleDataTransport (~> 8.0)
    - nanopb (~> 2.30906.0)
    - PromisesObjC (~> 1.2)
  - FirebaseFunctions (7.3.0):
    - FirebaseCore (~> 7.0)
    - GTMSessionFetcher/Core (~> 1.4)
  - FirebaseInAppMessaging (7.3.0-beta):
    - FirebaseABTesting (~> 7.0)
    - FirebaseCore (~> 7.0)
    - FirebaseInstallations (~> 7.0)
    - GoogleUtilities/Environment (~> 7.0)
    - nanopb (~> 2.30906.0)
  - FirebaseInstallations (7.3.0):
    - FirebaseCore (~> 7.0)
    - GoogleUtilities/Environment (~> 7.0)
    - GoogleUtilities/UserDefaults (~> 7.0)
    - PromisesObjC (~> 1.2)
  - FirebaseInstanceID (7.3.0):
    - FirebaseCore (~> 7.0)
    - FirebaseInstallations (~> 7.0)
    - GoogleUtilities/Environment (~> 7.0)
    - GoogleUtilities/UserDefaults (~> 7.0)
  - FirebaseMessaging (7.3.0):
    - FirebaseCore (~> 7.0)
    - FirebaseInstanceID (~> 7.0)
    - GoogleUtilities/AppDelegateSwizzler (~> 7.0)
    - GoogleUtilities/Environment (~> 7.0)
    - GoogleUtilities/Reachability (~> 7.0)
    - GoogleUtilities/UserDefaults (~> 7.0)
  - FirebasePerformance (7.3.0):
    - FirebaseCore (~> 7.0)
    - FirebaseInstallations (~> 7.0)
    - FirebaseRemoteConfig (~> 7.0)
    - GoogleDataTransport (~> 8.1)
    - GoogleToolboxForMac/Logger (~> 2.1)
    - "GoogleToolboxForMac/NSData+zlib (~> 2.1)"
    - GoogleUtilities/Environment (~> 7.0)
    - GoogleUtilities/ISASwizzler (~> 7.0)
    - GoogleUtilities/MethodSwizzler (~> 7.0)
    - GTMSessionFetcher/Core (~> 1.1)
    - Protobuf (~> 3.12)
  - FirebaseRemoteConfig (7.3.0):
    - FirebaseABTesting (~> 7.0)
    - FirebaseCore (~> 7.0)
    - FirebaseInstallations (~> 7.0)
    - GoogleUtilities/Environment (~> 7.0)
    - "GoogleUtilities/NSData+zlib (~> 7.0)"
  - Google-Mobile-Ads-SDK (7.69.0):
    - GoogleAppMeasurement (~> 7.0)
    - GoogleUserMessagingPlatform (~> 1.1)
  - GoogleAppMeasurement (7.3.0):
    - GoogleUtilities/AppDelegateSwizzler (~> 7.0)
    - GoogleUtilities/MethodSwizzler (~> 7.0)
    - GoogleUtilities/Network (~> 7.0)
    - "GoogleUtilities/NSData+zlib (~> 7.0)"
    - nanopb (~> 2.30906.0)
  - GoogleDataTransport (8.1.0):
    - nanopb (~> 2.30906.0)
  - GoogleToolboxForMac/Defines (2.3.0)
  - GoogleToolboxForMac/Logger (2.3.0):
    - GoogleToolboxForMac/Defines (= 2.3.0)
  - "GoogleToolboxForMac/NSData+zlib (2.3.0)":
    - GoogleToolboxForMac/Defines (= 2.3.0)
  - GoogleUserMessagingPlatform (1.4.0)
  - GoogleUtilities (7.1.1):
    - GoogleUtilities/AppDelegateSwizzler (= 7.1.1)
    - GoogleUtilities/Environment (= 7.1.1)
    - GoogleUtilities/ISASwizzler (= 7.1.1)
    - GoogleUtilities/Logger (= 7.1.1)
    - GoogleUtilities/MethodSwizzler (= 7.1.1)
    - GoogleUtilities/Network (= 7.1.1)
    - "GoogleUtilities/NSData+zlib (= 7.1.1)"
    - GoogleUtilities/Reachability (= 7.1.1)
    - GoogleUtilities/SwizzlerTestHelpers (= 7.1.1)
    - GoogleUtilities/UserDefaults (= 7.1.1)
  - GoogleUtilities/AppDelegateSwizzler (7.1.1):
    - GoogleUtilities/Environment
    - GoogleUtilities/Logger
    - GoogleUtilities/Network
  - GoogleUtilities/Environment (7.1.1):
    - PromisesObjC (~> 1.2)
  - GoogleUtilities/ISASwizzler (7.1.1)
  - GoogleUtilities/Logger (7.1.1):
    - GoogleUtilities/Environment
  - GoogleUtilities/MethodSwizzler (7.1.1):
    - GoogleUtilities/Logger
  - GoogleUtilities/Network (7.1.1):
    - GoogleUtilities/Logger
    - "GoogleUtilities/NSData+zlib"
    - GoogleUtilities/Reachability
  - "GoogleUtilities/NSData+zlib (7.1.1)"
  - GoogleUtilities/Reachability (7.1.1):
    - GoogleUtilities/Logger
  - GoogleUtilities/SwizzlerTestHelpers (7.1.1):
    - GoogleUtilities/MethodSwizzler
  - GoogleUtilities/UserDefaults (7.1.1):
    - GoogleUtilities/Logger
  - GTMSessionFetcher/Core (1.5.0)
  - nanopb (2.30906.0):
    - nanopb/decode (= 2.30906.0)
    - nanopb/encode (= 2.30906.0)
  - nanopb/decode (2.30906.0)
  - nanopb/encode (2.30906.0)
...
  - Protobuf (3.14.0)

DEPENDENCIES:
...
  - Firebase/AdMob
  - Firebase/Analytics
  - Firebase/Core
  - Firebase/Crashlytics
  - Firebase/Functions
  - Firebase/InAppMessaging
  - Firebase/Messaging
  - Firebase/Performance
  - Firebase/RemoteConfig
  - GoogleUtilities
...

SPEC REPOS:
  https://github.com/CocoaPods/Specs.git:
...
    - Firebase
    - FirebaseABTesting
    - FirebaseAnalytics
    - FirebaseCore
    - FirebaseCoreDiagnostics
    - FirebaseCrashlytics
    - FirebaseFunctions
    - FirebaseInAppMessaging
    - FirebaseInstallations
    - FirebaseInstanceID
    - FirebaseMessaging
    - FirebasePerformance
    - FirebaseRemoteConfig
    - Google-Mobile-Ads-SDK
    - GoogleAppMeasurement
    - GoogleDataTransport
    - GoogleToolboxForMac
    - GoogleUserMessagingPlatform
    - GoogleUtilities
    - GTMSessionFetcher
    - nanopb
...
    - Protobuf

SPEC CHECKSUMS:
...
  Firebase: 26223c695fe322633274198cb19dca8cb7e54416
  FirebaseABTesting: 303b5366c0c75be479424e8935e2f475cf24ce21
  FirebaseAnalytics: 2580c2d62535ae7b644143d48941fcc239ea897a
  FirebaseCore: 4d3c72622ce0e2106aaa07bb4b2935ba2c370972
  FirebaseCoreDiagnostics: d50e11039e5984d92c8a512be2395f13df747350
  FirebaseCrashlytics: d31325312c92e2cb2f0386d589b9aa44e303d99b
  FirebaseFunctions: 56b7275ad46d936b77b64ecacd306e77db7be251
  FirebaseInAppMessaging: 9436b16bbd1fd02bcb50c25ed485150b3269d611
  FirebaseInstallations: 971df89b48ae5ee4cc2bf6935f3857a525d28550
  FirebaseInstanceID: 5ccdee6a84e6b4bb5316de0a8cd88bc749ba490d
  FirebaseMessaging: 68d1bcb14880189558a8ae57167abe0b7e417232
  FirebasePerformance: 7915b7dfc8258030d5fac9544d7fa6b55fbe3e57
  FirebaseRemoteConfig: 826fad8bec5ce1912ef97a124d6ec0ce4dcf6ec1
  Google-Mobile-Ads-SDK: 2f288748a42920d1c744946a460896a95b0e9110
  GoogleAppMeasurement: 8d3c0aeede16ab7764144b5a4ca8e1d4323841b7
  GoogleDataTransport: 116c84c4bdeb76be2a7a46de51244368f9794eab
  GoogleToolboxForMac: 1350d40e86a76f7863928d63bcb0b89c84c521c5
  GoogleUserMessagingPlatform: b168e8c46cd8f92aa3e34b584c4ca78a411ce367
  GoogleUtilities: 3dc4ff0d5e4840e2fa8eef0889620e8c33d4218c
  GTMSessionFetcher: b3503b20a988c4e20cc189aa798fd18220133f52
  nanopb: 1bf24dd71191072e120b83dd02d08f3da0d65e53
...
  Protobuf: 0cde852566359049847168e51bd1c690e0f70056

PODFILE CHECKSUM: 11163c2b7e65cd88d7da843f3d7bbb1026b002c2

COCOAPODS: 1.10.0
```

</p>
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Using Performance together with Remote Config impedes the activation of Remote Config remote values #7179

[REQUIRED] Step 1: Describe your environment

[REQUIRED] Step 2: Describe the problem

Steps to reproduce:

Relevant Code:

Podfile:

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