Update proto parsing method calls: In ModulesServiceImpl, simplify proto parsing by using parseFrom directly instead of creating a builder and merging, for SetNumInstancesResponse, StartModuleResponse, and StopModuleResponse. The parsed result is still unused.

PiperOrigin-RevId: 873167910
Change-Id: Idb6304efbb219d200d2c3e5229ddead6e92a016f

Author: ludoch

api/src/main/java/com/google/appengine/api/modules/ModulesServiceImpl.java

@@ -249,8 +249,7 @@ public Future<Void> setNumInstancesAsync(String module, String version, long ins
 
       @Override
       protected Void wrap(byte[] key) throws InvalidProtocolBufferException {
-        SetNumInstancesResponse.Builder responseBuilder = SetNumInstancesResponse.newBuilder();
-        responseBuilder.mergeFrom(key);
+        SetNumInstancesResponse unused = SetNumInstancesResponse.parseFrom(key);
         return null;
       }
     };
@@ -272,8 +271,7 @@ public Future<Void> startVersionAsync(String module, String version) {
 
       @Override
       protected Void wrap(byte[] key) throws InvalidProtocolBufferException {
-        StartModuleResponse.Builder responseBuilder = StartModuleResponse.newBuilder();
-        responseBuilder.mergeFrom(key);
+        StartModuleResponse unused = StartModuleResponse.parseFrom(key);
         return null;
       }
     };
@@ -300,8 +298,7 @@ public Future<Void> stopVersionAsync(String module, String version) {
 
       @Override
       protected Void wrap(byte[] key) throws InvalidProtocolBufferException {
-        StopModuleResponse.Builder responseBuilder = StopModuleResponse.newBuilder();
-        responseBuilder.mergeFrom(key);
+        StopModuleResponse unused = StopModuleResponse.parseFrom(key);
         return null;
       }
     };