[AppCheck] Remove unused Promises dependency (#13315)

FirebaseAppCheck.podspec

@@ -47,7 +47,6 @@ Pod::Spec.new do |s|
   s.dependency 'AppCheckCore', '~> 11.0'
   s.dependency 'FirebaseAppCheckInterop', '~> 11.0'
   s.dependency 'FirebaseCore', '~> 11.0'
-  s.dependency 'PromisesObjC', '~> 2.4'
   s.dependency 'GoogleUtilities/Environment', '~> 8.0'
   s.dependency 'GoogleUtilities/UserDefaults', '~> 8.0'
 

FirebaseAppCheck/Sources/DebugProvider/FIRAppCheckDebugProvider.m

@@ -16,12 +16,6 @@
 
 #import "FirebaseAppCheck/Sources/Public/FirebaseAppCheck/FIRAppCheckDebugProvider.h"
 
-#if __has_include(<FBLPromises/FBLPromises.h>)
-#import <FBLPromises/FBLPromises.h>
-#else
-#import "FBLPromises.h"
-#endif
-
 #import <AppCheckCore/AppCheckCore.h>
 
 #import "FirebaseAppCheck/Sources/Core/FIRApp+AppCheck.h"

FirebaseAppCheck/Tests/Unit/Core/FIRAppCheckTests.m

@@ -18,8 +18,6 @@
 
 #import <OCMock/OCMock.h>
 
-#import "FBLPromise+Testing.h"
-
 #import <FirebaseAppCheckInterop/FirebaseAppCheckInterop.h>
 
 #import "FirebaseAppCheck/Sources/Public/FirebaseAppCheck/FIRAppCheck.h"

FirebaseAppCheck/Tests/Unit/DeviceCheckProvider/FIRDeviceCheckProviderTests.m

@@ -17,7 +17,6 @@
 #import <XCTest/XCTest.h>
 
 #import <OCMock/OCMock.h>
-#import "FBLPromise+Testing.h"
 
 #import "FirebaseAppCheck/Sources/Core/Errors/FIRAppCheckErrorUtil.h"
 #import "FirebaseAppCheck/Sources/Core/FIRAppCheckToken+Internal.h"

Package.swift

@@ -1224,7 +1224,6 @@ let package = Package(
               "FirebaseAppCheckInterop",
               "FirebaseCore",
               .product(name: "AppCheckCore", package: "app-check"),
-              .product(name: "FBLPromises", package: "Promises"),
               .product(name: "GULEnvironment", package: "GoogleUtilities"),
               .product(name: "GULUserDefaults", package: "GoogleUtilities"),
             ],