Revert of [builtins] Introduce a builtin for Abort().

src/builtins/x64/builtins-x64.cc

Index: src/builtins/x64/builtins-x64.cc
diff --git a/src/builtins/x64/builtins-x64.cc b/src/builtins/x64/builtins-x64.cc
index 1fb26bf8dd480c0dfda7707d19d983b63ff9a968..c015405c6028e5a40cdcdfc25dce855102184c58 100644
--- a/src/builtins/x64/builtins-x64.cc
+++ b/src/builtins/x64/builtins-x64.cc
@@ -2113,19 +2113,6 @@
   __ PushReturnAddressFrom(rcx);
   __ Move(rsi, Smi::FromInt(0));
   __ TailCallRuntime(Runtime::kAllocateInTargetSpace);
-}
-
-// static
-void Builtins::Generate_Abort(MacroAssembler* masm) {
-  // ----------- S t a t e -------------
-  //  -- rdx    : message_id as Smi
-  //  -- rsp[0] : return address
-  // -----------------------------------
-  __ PopReturnAddressTo(rcx);
-  __ Push(rdx);
-  __ PushReturnAddressFrom(rcx);
-  __ Move(rsi, Smi::FromInt(0));
-  __ TailCallRuntime(Runtime::kAbort);
 }
 
 void Builtins::Generate_StringToNumber(MacroAssembler* masm) {