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

R=jarin@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2745753002
Cr-Commit-Position: refs/heads/master@{#43815}

src/x64/assembler-x64.cc

@@ -1333,15 +1333,6 @@ void Assembler::jmp(Handle<Code> target, RelocInfo::Mode rmode) {
 }
 
 
-void Assembler::jmp(Address entry, RelocInfo::Mode rmode) {
-  DCHECK(RelocInfo::IsRuntimeEntry(rmode));
-  EnsureSpace ensure_space(this);
-  DCHECK(RelocInfo::IsRuntimeEntry(rmode));
-  emit(0xE9);
-  emit_runtime_entry(entry, rmode);
-}
-
-
 void Assembler::jmp(Register target) {
   EnsureSpace ensure_space(this);
   // Opcode FF/4 r64.

src/x64/assembler-x64.h

@@ -925,7 +925,6 @@ class Assembler : public AssemblerBase {
   // 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)