[ARM] Remove redundant #if in test. NFC

Both sides of this #if #include the same file. Drop the #if, leaving only the #include.

Patch by Matt Glazar.

Differential Revision: https://reviews.llvm.org/D45779

llvm-svn: 331305

clang/test/CodeGen/arm-aapcs-vfp.c

@@ -17,11 +17,7 @@
 // RUN:   -ffreestanding \
 // RUN:   -emit-llvm -w -o - %s | FileCheck -check-prefix=CHECK64 %s
 
-#ifdef __arm64__
 #include <arm_neon.h>
-#else
-#include <arm_neon.h>
-#endif
 
 struct homogeneous_struct {
   float f[2];