Remove extraneous line from CompareWrapper test

On platforms without TurboFan (PowerPC) the CompareWrapper test was
failing. It appears the line

RawMachineAssemblerTester<int32_t> m;

was causing the issue, and does not appear to be required for the
test to operate correctly. Removing it resolves the crash on non
TurboFan platforms

BUG=
R=titzer@chromium.org

Review URL: https://codereview.chromium.org/618043002

Patch from Andrew Low <andrew_low@ca.ibm.com>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24424 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

test/cctest/compiler/codegen-tester.cc

@@ -15,7 +15,6 @@ using namespace v8::internal::compiler;
 TEST(CompareWrapper) {
   // Who tests the testers?
   // If CompareWrapper is broken, then test expectations will be broken.
-  RawMachineAssemblerTester<int32_t> m;
   CompareWrapper wWord32Equal(IrOpcode::kWord32Equal);
   CompareWrapper wInt32LessThan(IrOpcode::kInt32LessThan);
   CompareWrapper wInt32LessThanOrEqual(IrOpcode::kInt32LessThanOrEqual);