refactor(firebase_functions)!: remove deprecated APIs

packages/cloud_functions/cloud_functions/lib/cloud_functions.dart

@@ -14,11 +14,7 @@ import 'package:flutter/foundation.dart';
 import 'package:meta/meta.dart';
 
 export 'package:cloud_functions_platform_interface/cloud_functions_platform_interface.dart'
-    show
-        // ignore: deprecated_member_use
-        CloudFunctionsException,
-        HttpsCallableOptions,
-        FirebaseFunctionsException;
+    show HttpsCallableOptions, FirebaseFunctionsException;
 
 part 'src/firebase_functions.dart';
 part 'src/https_callable.dart';

packages/cloud_functions/cloud_functions/lib/src/firebase_functions.dart

@@ -54,13 +54,6 @@ class FirebaseFunctions extends FirebasePluginPlatform {
     return newInstance;
   }
 
-  // ignore: public_member_api_docs
-  @Deprecated(
-      "Constructing CloudFunctions is deprecated, use 'FirebaseFunctions.instance' or 'FirebaseFunctions.instanceFor' instead")
-  factory FirebaseFunctions({FirebaseApp app, String region}) {
-    return FirebaseFunctions.instanceFor(app: app, region: region);
-  }
-
   final String _region;
 
   String _origin;
@@ -73,12 +66,6 @@ class FirebaseFunctions extends FirebasePluginPlatform {
     return HttpsCallable._(_delegate.httpsCallable(_origin, name, options));
   }
 
-  @Deprecated("Deprecated in favor of httpsCallable()")
-  // ignore: public_member_api_docs
-  HttpsCallable getHttpsCallable({@required String functionName}) {
-    return httpsCallable(functionName);
-  }
-
   /// Changes this instance to point to a Cloud Functions emulator running locally.
   ///
   /// Set the [origin] of the local emulator, such as "http://localhost:5001", or `null`
@@ -100,21 +87,3 @@ class FirebaseFunctions extends FirebasePluginPlatform {
     _origin = origin;
   }
 }
-
-@Deprecated("Deprecated in favor of FirebaseFunctions")
-// ignore: public_member_api_docs
-class CloudFunctions extends FirebaseFunctions {
-  /// Returns an instance using the default [FirebaseApp].
-  static FirebaseFunctions get instance {
-    return FirebaseFunctions.instanceFor(
-      app: Firebase.app(),
-    );
-  }
-
-  // ignore: public_member_api_docs
-  @Deprecated(
-      "Constructing CloudFunctions is deprecated, use 'FirebaseFunctions.instance' or 'FirebaseFunctions.instanceFor' instead")
-  factory CloudFunctions({FirebaseApp app, String region}) {
-    return FirebaseFunctions.instanceFor(app: app, region: region);
-  }
-}

packages/cloud_functions/cloud_functions/lib/src/https_callable.dart

@@ -31,13 +31,6 @@ class HttpsCallable {
     assert(_delegate != null);
     return HttpsCallableResult<T>._(await _delegate.call(parameters));
   }
-
-  @Deprecated(
-      "Setting the timeout is deprecated in favor of using [HttpsCallableOptions]")
-  // ignore: public_member_api_docs
-  set timeout(Duration duration) {
-    _delegate.timeout = duration;
-  }
 }
 
 /// Asserts whether a given call parameter is a valid type.

packages/cloud_functions/cloud_functions/test/firebase_functions_test.dart

@@ -70,11 +70,4 @@ void main() {
     functions.httpsCallable('testName');
     verify(kMockFirebaseFunctionsPlatform.httpsCallable(any, 'testName', any));
   });
-
-//
-  test('getHttpsCallable()', () {
-    // ignore: deprecated_member_use_from_same_package
-    functions.getHttpsCallable(functionName: 'testName');
-    verify(kMockFirebaseFunctionsPlatform.httpsCallable(any, 'testName', any));
-  });
 }

packages/cloud_functions/cloud_functions/test/https_callable_test.dart

@@ -102,14 +102,5 @@ void main() {
         verify(kMockHttpsCallablePlatform(parameters));
       });
     });
-
-    group('set.timeout (deprecated)', () {
-      test('sets timeout value', () async {
-        // ignore: deprecated_member_use_from_same_package
-        kHttpsCallable.timeout = Duration(minutes: 2);
-
-        verify(kMockHttpsCallablePlatform.timeout = Duration(minutes: 2));
-      });
-    });
   });
 }

packages/cloud_functions/cloud_functions_platform_interface/lib/src/firebase_functions_exception.dart

@@ -21,7 +21,3 @@ class FirebaseFunctionsException extends FirebaseException
   /// Additional data provided with the exception.
   final dynamic details;
 }
-
-@Deprecated("Deprecated in favor of FirebaseFunctionsException")
-// ignore: public_member_api_docs
-class CloudFunctionsException extends FirebaseFunctionsException {}