clang/test/Driver/cl-options.c: Remove the feature "clang-driver". It has been working since r188331.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@188790 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Driver/cl-options.c b/test/Driver/cl-options.c
index 85ae4cf..7e9b0c4 100644
--- a/test/Driver/cl-options.c
+++ b/test/Driver/cl-options.c
@@ -1,7 +1,5 @@
 // Don't attempt slash switches on msys bash.
 // REQUIRES: shell-preserves-root
-// Exclude gcc-driven clang.
-// REQUIRES: clang-driver
 
 // Note: %s must be preceded by --, otherwise it may be interpreted as a
 // command-line option, e.g. on Mac where %s is commonly under /Users.