[PM] Remove a bunch of stale TTI creation method declarations. I nuked

their definitions, but forgot to clean up all the declarations which are
in different files.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227698 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/X86/X86.h

@@ -55,9 +55,6 @@ FunctionPass *createX86IssueVZeroUpperPass();
 ///
 FunctionPass *createEmitX86CodeToMemory();
 
-/// \brief Creates an X86-specific Target Transformation Info pass.
-ImmutablePass *createX86TargetTransformInfoPass(const X86TargetMachine *TM);
-
 /// createX86PadShortFunctions - Return a pass that pads short functions
 /// with NOOPs. This will prevent a stall when returning on the Atom.
 FunctionPass *createX86PadShortFunctions();