Remove unused AsmPrinter OptLevel argument, and propogate.

- This more or less amounts to a revert of r65379. I'm curious to know what
   happened that caused this variable to become unused.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74579 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/XCore/XCoreTargetMachine.cpp

@@ -69,6 +69,6 @@ bool XCoreTargetMachine::addAssemblyEmitter(PassManagerBase &PM,
                                             bool Verbose,
                                             raw_ostream &Out) {
   // Output assembly language.
-  PM.add(createXCoreCodePrinterPass(Out, *this, OptLevel, Verbose));
+  PM.add(createXCoreCodePrinterPass(Out, *this, Verbose));
   return false;
 }