Unnecessay SSE2 check on x64

src/x64/stub-cache-x64.cc

Index: src/x64/stub-cache-x64.cc
diff --git a/src/x64/stub-cache-x64.cc b/src/x64/stub-cache-x64.cc
index 9b8a04acb26f44cef9d9a489e2bc5c98dd014a9b..b6f6c5c31c79147bfdf48e36b555c516a27917ec 100644
--- a/src/x64/stub-cache-x64.cc
+++ b/src/x64/stub-cache-x64.cc
@@ -2245,13 +2245,6 @@ Handle<Code> CallStubCompiler::CompileMathFloorCall(
   //  -- ...
   //  -- rsp[(argc + 1) * 4] : receiver
   // -----------------------------------
-
-  if (!CpuFeatures::IsSupported(SSE2)) {
-    return Handle<Code>::null();
-  }
-
-  CpuFeatureScope use_sse2(masm(), SSE2);
-
   const int argc = arguments().immediate();
 
   // If the object is not a JSObject or we got an unexpected number of