Subzero. Removes X8664_STACK_HACK from the crosstests.

crosstest/test_vector_ops_main.cpp

 //===- subzero/crosstest/test_vector_ops_main.cpp - Driver for tests ------===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
 // Driver for crosstesting insertelement and extractelement operations
@@ skipping 112 matching lines @@
         std::cout << vectAsString<T>(Vect) << ", Pos=" << I << ")\n";
         std::cout << "llc=" << ResultLlc << "\n";
         std::cout << "sz =" << ResultSz << "\n";
       }
     }
   }
 
   free(TestVectors);
 }
 
-#ifdef X8664_STACK_HACK
-extern "C" int wrapped_main(int argc, char *argv[]) {
-#else  // !defined(X8664_STACK_HACK)
 int main(int argc, char *argv[]) {
-#endif // X8664_STACK_HACK
   size_t TotalTests = 0;
   size_t Passes = 0;
   size_t Failures = 0;
 
   testInsertElement<v4i1>(TotalTests, Passes, Failures);
   testInsertElement<v8i1>(TotalTests, Passes, Failures);
   testInsertElement<v16i1>(TotalTests, Passes, Failures);
   testInsertElement<v16si8>(TotalTests, Passes, Failures);
   testInsertElement<v16ui8>(TotalTests, Passes, Failures);
   testInsertElement<v8si16>(TotalTests, Passes, Failures);
@@ skipping 11 matching lines @@
   testExtractElement<v8ui16>(TotalTests, Passes, Failures);
   testExtractElement<v4si32>(TotalTests, Passes, Failures);
   testExtractElement<v4ui32>(TotalTests, Passes, Failures);
   testExtractElement<v4f32>(TotalTests, Passes, Failures);
 
   std::cout << "TotalTests=" << TotalTests << " Passes=" << Passes
             << " Failures=" << Failures << "\n";
 
   return Failures;
 }