[assembler] Remove obsolete InvokeBuiltin macro.

src/x64/macro-assembler-x64.cc

Index: src/x64/macro-assembler-x64.cc
diff --git a/src/x64/macro-assembler-x64.cc b/src/x64/macro-assembler-x64.cc
index abbcaacf24a8ac1938436eace8adb2ef5bd88307..59a836062b86fe57cd120f4a50a9418144e2fd1d 100644
--- a/src/x64/macro-assembler-x64.cc
+++ b/src/x64/macro-assembler-x64.cc
@@ -690,18 +690,6 @@ void MacroAssembler::JumpToExternalReference(const ExternalReference& ext) {
 }
 
 
-void MacroAssembler::InvokeBuiltin(int native_context_index, InvokeFlag flag,
-                                   const CallWrapper& call_wrapper) {
-  // You can't call a builtin without a valid frame.
-  DCHECK(flag == JUMP_FUNCTION || has_frame());
-
-  // Fake a parameter count to avoid emitting code to do the check.
-  ParameterCount expected(0);
-  LoadNativeContextSlot(native_context_index, rdi);
-  InvokeFunctionCode(rdi, no_reg, expected, expected, flag, call_wrapper);
-}
-
-
 #define REG(Name) \
   { Register::kCode_##Name }