Revert of Expose SIMD.Float32x4 type to Javascript.

src/ia32/lithium-codegen-ia32.cc

Index: src/ia32/lithium-codegen-ia32.cc
diff --git a/src/ia32/lithium-codegen-ia32.cc b/src/ia32/lithium-codegen-ia32.cc
index 00860115ba82a0ad386df7ba9fb86c866ec2c462..c236f73345b7d6b57051da40e7ef403c15070e80 100644
--- a/src/ia32/lithium-codegen-ia32.cc
+++ b/src/ia32/lithium-codegen-ia32.cc
@@ -2164,12 +2164,6 @@
         __ j(equal, instr->TrueLabel(chunk_));
       }
 
-      if (expected.Contains(ToBooleanStub::SIMD_VALUE)) {
-        // SIMD value -> true.
-        __ CmpInstanceType(map, FLOAT32X4_TYPE);
-        __ j(equal, instr->TrueLabel(chunk_));
-      }
-
       if (expected.Contains(ToBooleanStub::HEAP_NUMBER)) {
         // heap number -> false iff +0, -0, or NaN.
         Label not_heap_number;
@@ -5516,11 +5510,6 @@
               1 << Map::kIsUndetectable);
     final_branch_condition = zero;
 
-  } else if (String::Equals(type_name, factory()->float32x4_string())) {
-    __ JumpIfSmi(input, false_label, false_distance);
-    __ CmpObjectType(input, FLOAT32X4_TYPE, input);
-    final_branch_condition = equal;
-
   } else {
     __ jmp(false_label, false_distance);
   }