Removed dead code: GenericUnaryOpStub is not used anymore, as a consequence, NegativeZeroHandling...

src/mips/code-stubs-mips.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 408 matching lines @@
   UNIMPLEMENTED_MIPS();
   return Runtime::kAbort;
 }
 
 
 void StackCheckStub::Generate(MacroAssembler* masm) {
   UNIMPLEMENTED_MIPS();
 }
 
 
-void GenericUnaryOpStub::Generate(MacroAssembler* masm) {
-  UNIMPLEMENTED_MIPS();
-}
-
-
 bool CEntryStub::NeedsImmovableCode() {
   return true;
 }
 
 
 void CEntryStub::GenerateThrowTOS(MacroAssembler* masm) {
   UNIMPLEMENTED_MIPS();
 }
 
 
@@ skipping 299 matching lines @@
   UNIMPLEMENTED_MIPS();
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_MIPS