[turbofan] Remove unnecessary code at end of every TurboFan function.

R=jarin@chromium.org, mstarzinger@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2132393002
Cr-Commit-Position: refs/heads/master@{#37641}

src/compiler/code-generator-impl.h

@@ -210,8 +210,6 @@ class OutOfLineCode : public ZoneObject {
 static inline void FinishCode(MacroAssembler* masm) {
 #if V8_TARGET_ARCH_ARM64 || V8_TARGET_ARCH_ARM
   masm->CheckConstPool(true, false);
-#elif V8_TARGET_ARCH_IA32 || V8_TARGET_ARCH_X64
-  masm->ud2();
 #endif
 }