MIPS: Fix for assertion failure on kraken on ARM (Issue 1923).

Port r10570 (aa5a8c8e)

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9318005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10574 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/mips/lithium-codegen-mips.cc

@@ -3757,7 +3757,6 @@ void LCodeGen::DoDeferredNumberTagI(LNumberTagI* instr) {
   // TODO(3095996): Put a valid pointer value in the stack slot where the result
   // register is stored, as this register is in the pointer map, but contains an
   // integer value.
-  __ StoreToSafepointRegisterSlot(zero_reg, src);
   __ StoreToSafepointRegisterSlot(zero_reg, dst);
   CallRuntimeFromDeferred(Runtime::kAllocateHeapNumber, 0, instr);
   __ Move(dst, v0);