[Pipeliner] Remove the unneeded include header(NFC).

Sumanth Gundapaneni · Sumanth Gundapaneni · commit dfdbc716e48d · 2018-10-25T21:25:30.000Z
Differential Revision: https://reviews.llvm.org/D53451 llvm-svn: 345318
diff --git a/llvm/lib/CodeGen/MachinePipeliner.cpp b/llvm/lib/CodeGen/MachinePipeliner.cpp
@@ -102,7 +102,6 @@
 #include "llvm/MC/MCInstrItineraries.h"
 #include "llvm/MC/MCRegisterInfo.h"
 #include "llvm/Pass.h"
-#include "llvm/Support/Casting.h"
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/Compiler.h"
 #include "llvm/Support/Debug.h"
