Removed comment from code generation and updated tests

src/compiler/objective_c_generator.cc

@@ -241,7 +241,6 @@ void PrintMethodImplementations(Printer *printer,
     printer.Print("                 serviceName:(NSString *)serviceName {\n");
     printer.Print("  return [self initWithHost:host];\n");
     printer.Print("}\n\n");
-    printer.Print("// Class factory method\n");
     printer.Print("+ (instancetype)serviceWithHost:(NSString *)host {\n");
     printer.Print("  return [[self alloc] initWithHost:host];\n");
     printer.Print("}\n\n\n");

src/objective-c/tests/InteropTests.m

@@ -89,7 +89,7 @@ static NSString * const kRemoteSSLHost = @"grpc-test.sandbox.google.com";
 }
 
 - (void)setUp {
-  _service = [[RMTTestService alloc] initWithHost:self.class.host];
+  _service = [RMTTestService serviceWithHost:self.class.host];
 }
 
 - (void)testEmptyUnaryRPC {