Style fixes

Author: yaroluchko

AmplifyPlugins/Auth/Sources/AWSCognitoAuthPlugin/CredentialStorage/AWSCognitoAuthCredentialStore.swift

@@ -55,7 +55,7 @@ struct AWSCognitoAuthCredentialStore {
         let oldAccessGroup = retrieveStoredAccessGroup()
         if migrateKeychainItemsOfUserSession {
             try? migrateKeychainItemsToAccessGroup()
-        } else if oldAccessGroup == nil && oldAccessGroup != accessGroup{
+        } else if oldAccessGroup == nil && oldAccessGroup != accessGroup {
             try? KeychainStore(service: service)._removeAll()
         }
 

AmplifyPlugins/Auth/Tests/AWSCognitoAuthPluginUnitTests/ActionTests/CredentialStore/MockCredentialStoreBehavior.swift

@@ -16,7 +16,6 @@ class MockKeychainStoreBehavior: KeychainStoreBehavior {
 
     let data: String
     let removeAllHandler: VoidHandler?
-    let mockKey: String = "mockKey"
 
     init(data: String,
          removeAllHandler: VoidHandler? = nil) {
@@ -42,5 +41,4 @@ class MockKeychainStoreBehavior: KeychainStoreBehavior {
     func _removeAll() throws {
         removeAllHandler?()
     }
-    
 }