Subzero: Allow builds with assertions disabled.

src/IceConverter.cpp

 //===- subzero/src/IceConverter.cpp - Converts LLVM to Ice  ---------------===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
 // This file implements the LLVM to ICE converter.
@@ skipping 619 matching lines @@
     convertGlobals(Mod);
   convertFunctions();
 }
 
 void Converter::convertFunctions() {
   for (Module::const_iterator I = Mod->begin(), E = Mod->end(); I != E; ++I) {
     if (I->empty())
       continue;
     LLVM2ICEConverter FunctionConverter(Ctx, Mod->getContext());
 
-    Timer TConvert;
     Cfg *Fcn = FunctionConverter.convertFunction(I);
     translateFcn(Fcn);
   }
 
   emitConstants();
 }
 
 } // end of namespace Ice