Remove some leftovers of full-codegen's generators implementation.

src/s390/assembler-s390.h

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // All Rights Reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions
 // are met:
 //
 // - Redistributions of source code must retain the above copyright notice,
 // this list of conditions and the following disclaimer.
 //
@@ skipping 1213 matching lines @@
 
   void nop(int type = 0);  // 0 is the default non-marking type.
 
   // Check the code size generated from label to here.
   int SizeOfCodeGeneratedSince(Label* label) {
     return pc_offset() - label->pos();
   }
 
   // Debugging
 
-  // Mark generator continuation.
-  void RecordGeneratorContinuation();
-
   // Mark address of a debug break slot.
   void RecordDebugBreakSlot(RelocInfo::Mode mode);
 
   // Record the AST id of the CallIC being compiled, so that it can be placed
   // in the relocation information.
   void SetRecordedAstId(TypeFeedbackId ast_id) { recorded_ast_id_ = ast_id; }
 
   TypeFeedbackId RecordedAstId() {
     // roohack - another issue??? DCHECK(!recorded_ast_id_.IsNone());
     return recorded_ast_id_;
@@ skipping 219 matching lines @@
 
 class EnsureSpace BASE_EMBEDDED {
  public:
   explicit EnsureSpace(Assembler* assembler) { assembler->CheckBuffer(); }
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_S390_ASSEMBLER_S390_H_