Revert of Expose SIMD.Float32x4 type to Javascript.

src/arm64/full-codegen-arm64.cc

Index: src/arm64/full-codegen-arm64.cc
diff --git a/src/arm64/full-codegen-arm64.cc b/src/arm64/full-codegen-arm64.cc
index 9b31556c7783a407a9ece35f20038768c3b5266a..825eed5be0bed5681f69fd4ab64e3ec0c7016d41 100644
--- a/src/arm64/full-codegen-arm64.cc
+++ b/src/arm64/full-codegen-arm64.cc
@@ -4926,12 +4926,6 @@
     __ JumpIfSmi(x0, if_false);
     __ CompareObjectType(x0, x0, x1, SYMBOL_TYPE);
     Split(eq, if_true, if_false, fall_through);
-  } else if (String::Equals(check, factory->float32x4_string())) {
-    ASM_LOCATION(
-        "FullCodeGenerator::EmitLiteralCompareTypeof float32x4_string");
-    __ JumpIfSmi(x0, if_false);
-    __ CompareObjectType(x0, x0, x1, FLOAT32X4_TYPE);
-    Split(eq, if_true, if_false, fall_through);
   } else if (String::Equals(check, factory->boolean_string())) {
     ASM_LOCATION("FullCodeGenerator::EmitLiteralCompareTypeof boolean_string");
     __ JumpIfRoot(x0, Heap::kTrueValueRootIndex, if_true);