[KernelInfo] Remove unused include.

Author: d0k

llvm/lib/Analysis/KernelInfo.cpp

@@ -22,7 +22,6 @@
 #include "llvm/IR/Metadata.h"
 #include "llvm/IR/Module.h"
 #include "llvm/IR/PassManager.h"
-#include "llvm/Target/TargetMachine.h"
 
 using namespace llvm;