Fix build failure due to r289674 on certain systems

Removed a useless include which caused conflict.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@289700 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/AMDGPU/MCTargetDesc/AMDGPUTargetStreamer.h

@@ -14,7 +14,6 @@
 #include "llvm/MC/MCStreamer.h"
 
 namespace llvm {
-#include "AMDGPURuntimeMetadata.h"
 
 class DataLayout;
 class Function;