Revert 13105: "Enable stub generation using Hydrogen/Lithium."

src/ia32/macro-assembler-ia32.cc

Index: src/ia32/macro-assembler-ia32.cc
diff --git a/src/ia32/macro-assembler-ia32.cc b/src/ia32/macro-assembler-ia32.cc
index e9ce7974e56c6f16b05e71e9f0dd0460ceda70e5..14fb8ca85220f1adba75dd26fb86711466bb72ad 100644
--- a/src/ia32/macro-assembler-ia32.cc
+++ b/src/ia32/macro-assembler-ia32.cc
@@ -1801,8 +1801,7 @@ void MacroAssembler::CallRuntimeSaveDoubles(Runtime::FunctionId id) {
   const Runtime::Function* function = Runtime::FunctionForId(id);
   Set(eax, Immediate(function->nargs));
   mov(ebx, Immediate(ExternalReference(function, isolate())));
-  CEntryStub ces(1, CpuFeatures::IsSupported(SSE2) ? kSaveFPRegs
-                                                   : kDontSaveFPRegs);
+  CEntryStub ces(1, kSaveFPRegs);
   CallStub(&ces);
 }