Remove the TargetMachine from DFAPacketizer since it was only

being used to grab subtarget specific things that we can grab
from the MachineFunction anyhow.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219650 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/CodeGen/DFAPacketizer.h

@@ -91,7 +91,6 @@ public:
 // API call is made to prune the dependence.
 class VLIWPacketizerList {
 protected:
-  const TargetMachine &TM;
   const MachineFunction &MF;
   const TargetInstrInfo *TII;