[Parser] Remove "add -fmodules" from the "use of '@import' when modules are disabled, add -fmodules" error.

We disable modules for C++, at which point this is confusing.
rdar://16641918

llvm-svn: 206440

clang/include/clang/Basic/DiagnosticParseKinds.td

@@ -225,7 +225,7 @@ def err_expected_property_name : Error<"expected property name">;
 
 def err_unexpected_at : Error<"unexpected '@' in program">;
 def err_atimport : Error<
-"use of '@import' when modules are disabled, add -fmodules">;
+"use of '@import' when modules are disabled">;
 
 def err_invalid_reference_qualifier_application : Error<
   "'%0' qualifier may not be applied to a reference">;

clang/test/Parser/check-objc2-syntax-1.m

@@ -1,7 +1,7 @@
 // RUN: %clang_cc1 -fsyntax-only -verify %s
 
 // rdar://15505492
-@import Foundation; // expected-error {{use of '@import' when modules are disabled, add -fmodules}}
+@import Foundation; // expected-error {{use of '@import' when modules are disabled}}
 
 @interface Subclass 
 + (int)magicNumber;