[x64] Remove unused version of Assembler::jmp.

src/x64/assembler-x64.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 907 matching lines @@
   void call(Address target);
 
   // Call near absolute indirect, address in register
   void call(Register adr);
 
   // Jumps
   // Jump short or near relative.
   // Use a 32-bit signed displacement.
   // Unconditional jump to L
   void jmp(Label* L, Label::Distance distance = Label::kFar);
-  void jmp(Address entry, RelocInfo::Mode rmode);
   void jmp(Handle<Code> target, RelocInfo::Mode rmode);
 
   // Jump near absolute indirect (r64)
   void jmp(Register adr);
   void jmp(const Operand& src);
 
   // Conditional jumps
   void j(Condition cc,
          Label* L,
          Label::Distance distance = Label::kFar);
@@ skipping 1578 matching lines @@
   Assembler* assembler_;
 #ifdef DEBUG
   int space_before_;
 #endif
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_X64_ASSEMBLER_X64_H_