[runtime] First step to sanitize regexp literal creation.

src/crankshaft/x87/lithium-x87.h

Index: src/crankshaft/x87/lithium-x87.h
diff --git a/src/crankshaft/x87/lithium-x87.h b/src/crankshaft/x87/lithium-x87.h
index cc4135eefc5558191adff598c1312bd3617953c2..f993a6a670de240b998fa1e62b408c9b4e262e2d 100644
--- a/src/crankshaft/x87/lithium-x87.h
+++ b/src/crankshaft/x87/lithium-x87.h
@@ -133,7 +133,6 @@ class LCodeGen;
   V(Power)                                   \
   V(Prologue)                                \
   V(PushArgument)                            \
-  V(RegExpLiteral)                           \
   V(Return)                                  \
   V(SeqStringGetChar)                        \
   V(SeqStringSetChar)                        \
@@ -2510,19 +2509,6 @@ class LAllocate final : public LTemplateInstruction<1, 2, 1> {
 };
 
 
-class LRegExpLiteral final : public LTemplateInstruction<1, 1, 0> {
- public:
-  explicit LRegExpLiteral(LOperand* context) {
-    inputs_[0] = context;
-  }
-
-  LOperand* context() { return inputs_[0]; }
-
-  DECLARE_CONCRETE_INSTRUCTION(RegExpLiteral, "regexp-literal")
-  DECLARE_HYDROGEN_ACCESSOR(RegExpLiteral)
-};
-
-
 class LToFastProperties final : public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LToFastProperties(LOperand* value) {