Misc Objective-C cleanups (#3751)

* Clean up references to Firestore.pbrpc

We're no longer using Objective-C gRPC services and this is no longer generated.

* Remove no longer existing entries from xcgmock

Author: wilhuff

Firestore/Example/Tests/Util/FSTHelpers.h

@@ -47,7 +47,6 @@
 @class FIRGeoPoint;
 @class FIRTimestamp;
 @class FSTDocumentKeyReference;
-@class FSTLocalViewChanges;
 @class FSTUserDataConverter;
 
 namespace firebase {

Firestore/Protos/CMakeLists.txt

@@ -113,8 +113,6 @@ endfunction()
 # omitted here.
 set(
   PROTOBUF_OBJC_GENERATED_SOURCES
-  ${OUTPUT_DIR}/objc/google/firestore/v1/Firestore.pbrpc.h
-  ${OUTPUT_DIR}/objc/google/firestore/v1/Firestore.pbrpc.m
 )
 foreach(root ${PROTO_FILE_ROOTS})
   get_filename_component(dir ${root} DIRECTORY)

Firestore/Source/Local/FSTLocalStore.h

@@ -42,8 +42,6 @@ class RemoteEvent;
 }  // namespace firestore
 }  // namespace firebase
 
-@class FSTLocalViewChanges;
-@class FSTLocalWriteResult;
 @protocol FSTPersistence;
 
 namespace auth = firebase::firestore::auth;

Firestore/core/test/firebase/firestore/testutil/xcgmock.h

@@ -141,31 +141,21 @@ OBJC_PRINT_TO(FIRTransaction);
 OBJC_PRINT_TO(FIRWriteBatch);
 OBJC_PRINT_TO(FSTArrayRemoveFieldValue);
 OBJC_PRINT_TO(FSTArrayUnionFieldValue);
-OBJC_PRINT_TO(FSTArrayValue);
-OBJC_PRINT_TO(FSTDelegateValue);
 OBJC_PRINT_TO(FSTDeleteFieldValue);
 OBJC_PRINT_TO(FSTDocumentKeyReference);
-OBJC_PRINT_TO(FSTDocumentSet);
-OBJC_PRINT_TO(FSTEventManager);
 OBJC_PRINT_TO(FSTFirestoreClient);
 OBJC_PRINT_TO(FSTFirestoreComponent);
-OBJC_PRINT_TO(FSTLRUGarbageCollector);
 OBJC_PRINT_TO(FSTLevelDB);
 OBJC_PRINT_TO(FSTLevelDBLRUDelegate);
 OBJC_PRINT_TO(FSTListenerRegistration);
-OBJC_PRINT_TO(FSTLocalDocumentsView);
 OBJC_PRINT_TO(FSTLocalSerializer);
 OBJC_PRINT_TO(FSTLocalStore);
-OBJC_PRINT_TO(FSTLocalViewChanges);
-OBJC_PRINT_TO(FSTLocalWriteResult);
 OBJC_PRINT_TO(FSTMemoryEagerReferenceDelegate);
 OBJC_PRINT_TO(FSTMemoryLRUReferenceDelegate);
 OBJC_PRINT_TO(FSTMemoryPersistence);
 OBJC_PRINT_TO(FSTNumericIncrementFieldValue);
 OBJC_PRINT_TO(FSTSerializerBeta);
 OBJC_PRINT_TO(FSTServerTimestampFieldValue);
-OBJC_PRINT_TO(FSTStringValue);
-OBJC_PRINT_TO(FSTSyncEngine);
 OBJC_PRINT_TO(FSTUserDataConverter);
 
 #endif  // FIRESTORE_CORE_TEST_FIREBASE_FIRESTORE_TESTUTIL_XCGMOCK_H_