[wasm] Remove obsolete {JumpTableAssembler::EmitJumpTrampoline}.

R=clemensh@chromium.org

Change-Id: Ib8725fb5d7cd6909c522e3dca015e192a3dc6b01
Reviewed-on: https://chromium-review.googlesource.com/1110124Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53941}

src/wasm/jump-table-assembler.cc

@@ -11,23 +11,6 @@ namespace v8 {
 namespace internal {
 namespace wasm {
 
-void JumpTableAssembler::EmitJumpTrampoline(Address target) {
-#if V8_TARGET_ARCH_X64
-  movq(kScratchRegister, static_cast<uint64_t>(target));
-  jmp(kScratchRegister);
-#elif V8_TARGET_ARCH_ARM64
-  UseScratchRegisterScope temps(this);
-  Register scratch = temps.AcquireX();
-  Mov(scratch, static_cast<uint64_t>(target));
-  Br(scratch);
-#elif V8_TARGET_ARCH_S390X
-  mov(ip, Operand(bit_cast<intptr_t, Address>(target)));
-  b(ip);
-#else
-  UNIMPLEMENTED();
-#endif
-}
-
 // The implementation is compact enough to implement it inline here. If it gets
 // much bigger, we might want to split it in a separate file per architecture.
 #if V8_TARGET_ARCH_X64

src/wasm/jump-table-assembler.h

@@ -27,9 +27,6 @@ class JumpTableAssembler : public TurboAssembler {
                        reinterpret_cast<void*>(slot_addr), size,
                        CodeObjectRequired::kNo) {}
 
-  // Emit a trampoline to a possibly far away code target.
-  void EmitJumpTrampoline(Address target);
-
 #if V8_TARGET_ARCH_X64
   static constexpr int kJumpTableSlotSize = 18;
 #elif V8_TARGET_ARCH_IA32