Remove SIMD.js from V8.

src/x64/code-stubs-x64.cc

Index: src/x64/code-stubs-x64.cc
diff --git a/src/x64/code-stubs-x64.cc b/src/x64/code-stubs-x64.cc
index a6d730fa844d5a47664b9a10b9e547869e8ddc87..2c3d57f1abb8764960a34ee1f64f7077e0576939 100644
--- a/src/x64/code-stubs-x64.cc
+++ b/src/x64/code-stubs-x64.cc
@@ -866,9 +866,6 @@ void CompareICStub::GenerateGeneric(MacroAssembler* masm) {
       // Call runtime on identical symbols since we need to throw a TypeError.
       __ cmpb(rcx, Immediate(static_cast<uint8_t>(SYMBOL_TYPE)));
       __ j(equal, &runtime_call, Label::kFar);
-      // Call runtime on identical SIMD values since we must throw a TypeError.
-      __ cmpb(rcx, Immediate(static_cast<uint8_t>(SIMD128_VALUE_TYPE)));
-      __ j(equal, &runtime_call, Label::kFar);
     }
     __ Set(rax, EQUAL);
     __ ret(0);