Tidy up #includes, deleting a bunch of unnecessary #includes.

llvm-svn: 61715
diff --git a/llvm/lib/Target/IA64/IA64InstrInfo.cpp b/llvm/lib/Target/IA64/IA64InstrInfo.cpp
index a9dce85..0a13c68 100644
--- a/llvm/lib/Target/IA64/IA64InstrInfo.cpp
+++ b/llvm/lib/Target/IA64/IA64InstrInfo.cpp
@@ -15,6 +15,7 @@
 #include "IA64.h"
 #include "IA64InstrBuilder.h"
 #include "llvm/CodeGen/MachineInstrBuilder.h"
+#include "llvm/ADT/SmallVector.h"
 #include "IA64GenInstrInfo.inc"
 using namespace llvm;