Remove obsolete -f flags.

llvm-svn: 79992
diff --git a/llvm/test/FrontendC/2003-08-29-StructLayoutBug.c b/llvm/test/FrontendC/2003-08-29-StructLayoutBug.c
index a5f6fb1..1673194 100644
--- a/llvm/test/FrontendC/2003-08-29-StructLayoutBug.c
+++ b/llvm/test/FrontendC/2003-08-29-StructLayoutBug.c
@@ -1,4 +1,4 @@
-// RUN: %llvmgcc -S %s -o - | llvm-as -f -o /dev/null
+// RUN: %llvmgcc -S %s -o - | llvm-as -o /dev/null
 
 struct foo {
   unsigned int I:1;