[debug] remove StepFrame

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 8aced350ec8f4d3f692c80bcdb3652bf8d176170..401fadb3efb73e943b561b119411fae6e5b35372 100644
--- a/src/builtins/x64/builtins-x64.cc
+++ b/src/builtins/x64/builtins-x64.cc
@@ -467,7 +467,6 @@ void Builtins::Generate_ResumeGeneratorTrampoline(MacroAssembler* masm) {
   ExternalReference debug_hook =
       ExternalReference::debug_hook_on_function_call_address(masm->isolate());
   Operand debug_hook_operand = masm->ExternalOperand(debug_hook);
-  STATIC_ASSERT(StepFrame > StepIn);
   __ cmpb(debug_hook_operand, Immediate(0));
   __ j(not_equal, &prepare_step_in_if_stepping);