Remove obsolete -f flags.

llvm-svn: 79992
diff --git a/llvm/test/FrontendC/2004-05-21-IncompleteEnum.c b/llvm/test/FrontendC/2004-05-21-IncompleteEnum.c
index 106df5e..958a8d1 100644
--- a/llvm/test/FrontendC/2004-05-21-IncompleteEnum.c
+++ b/llvm/test/FrontendC/2004-05-21-IncompleteEnum.c
@@ -1,4 +1,4 @@
-// RUN: %llvmgcc -w -S %s -o - | llvm-as -f -o /dev/null
+// RUN: %llvmgcc -w -S %s -o - | llvm-as -o /dev/null
 
 void test(enum foo *X) {
 }