AMDGPU: Remove unused TargetPassConfig include from attributor (llvm#150892)

Author: arsenm

llvm/lib/Target/AMDGPU/AMDGPUAttributor.cpp

@@ -13,7 +13,6 @@
 #include "AMDGPU.h"
 #include "GCNSubtarget.h"
 #include "Utils/AMDGPUBaseInfo.h"
-#include "llvm/CodeGen/TargetPassConfig.h"
 #include "llvm/IR/IntrinsicsAMDGPU.h"
 #include "llvm/IR/IntrinsicsR600.h"
 #include "llvm/Target/TargetMachine.h"