[compiler] Remove --ignition-preserve-bytecode flag.

src/builtins/s390/builtins-s390.cc

Index: src/builtins/s390/builtins-s390.cc
diff --git a/src/builtins/s390/builtins-s390.cc b/src/builtins/s390/builtins-s390.cc
index be5e69175c53cfafa1aa6478aaf2b7975dfbfb7d..b1ddc343acc76ee1fc76d4e83617a6718b0fc57b 100644
--- a/src/builtins/s390/builtins-s390.cc
+++ b/src/builtins/s390/builtins-s390.cc
@@ -1176,31 +1176,6 @@ void Builtins::Generate_InterpreterEntryTrampoline(MacroAssembler* masm) {
   __ JumpToJSEntry(r6);
 }
 
-void Builtins::Generate_InterpreterMarkBaselineOnReturn(MacroAssembler* masm) {
-  // Save the function and context for call to CompileBaseline.
-  __ LoadP(r3, MemOperand(fp, StandardFrameConstants::kFunctionOffset));
-  __ LoadP(kContextRegister,
-           MemOperand(fp, StandardFrameConstants::kContextOffset));
-
-  // Leave the frame before recompiling for baseline so that we don't count as
-  // an activation on the stack.
-  LeaveInterpreterFrame(masm, r4);
-
-  {
-    FrameScope frame_scope(masm, StackFrame::INTERNAL);
-    // Push return value.
-    __ push(r2);
-
-    // Push function as argument and compile for baseline.
-    __ push(r3);
-    __ CallRuntime(Runtime::kCompileBaseline);
-
-    // Restore return value.
-    __ pop(r2);
-  }
-  __ Ret();
-}
-
 static void Generate_StackOverflowCheck(MacroAssembler* masm, Register num_args,
                                         Register scratch,
                                         Label* stack_overflow) {