[intrinsics] Remove unused %_RegExpExec and %_NumberToString.

src/full-codegen/full-codegen.cc

Index: src/full-codegen/full-codegen.cc
diff --git a/src/full-codegen/full-codegen.cc b/src/full-codegen/full-codegen.cc
index 720f16aae9ba02aae43320be6ecbd140c4484d48..f7bb23c2d448953f9abbf87d6e9e75daa002f31d 100644
--- a/src/full-codegen/full-codegen.cc
+++ b/src/full-codegen/full-codegen.cc
@@ -561,21 +561,6 @@ void FullCodeGenerator::EmitSubString(CallRuntime* expr) {
 }
 
 
-void FullCodeGenerator::EmitRegExpExec(CallRuntime* expr) {
-  // Load the arguments on the stack and call the stub.
-  RegExpExecStub stub(isolate());
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK(args->length() == 4);
-  VisitForStackValue(args->at(0));
-  VisitForStackValue(args->at(1));
-  VisitForStackValue(args->at(2));
-  VisitForStackValue(args->at(3));
-  __ CallStub(&stub);
-  OperandStackDepthDecrement(4);
-  context()->Plug(result_register());
-}
-
-
 void FullCodeGenerator::EmitIntrinsicAsStubCall(CallRuntime* expr,
                                                 const Callable& callable) {
   ZoneList<Expression*>* args = expr->arguments();
@@ -607,10 +592,6 @@ void FullCodeGenerator::EmitIntrinsicAsStubCall(CallRuntime* expr,
   context()->Plug(result_register());
 }
 
-void FullCodeGenerator::EmitNumberToString(CallRuntime* expr) {
-  EmitIntrinsicAsStubCall(expr, CodeFactory::NumberToString(isolate()));
-}
-
 
 void FullCodeGenerator::EmitToString(CallRuntime* expr) {
   EmitIntrinsicAsStubCall(expr, CodeFactory::ToString(isolate()));