Revert of [Interpreter] Remove InterpreterExitTrampoline and replace with returning to the entry trampoline.

src/interpreter/bytecodes.cc

Index: src/interpreter/bytecodes.cc
diff --git a/src/interpreter/bytecodes.cc b/src/interpreter/bytecodes.cc
index 61d449796e3a24e2143526c36f5ae18e718e403d..6604191c5953cccaf137a938721692f0a9da596d 100644
--- a/src/interpreter/bytecodes.cc
+++ b/src/interpreter/bytecodes.cc
@@ -148,11 +148,6 @@
   return size;
 }
 
-
-// static
-size_t Bytecodes::ReturnCount(Bytecode bytecode) {
-  return bytecode == Bytecode::kReturn ? 1 : 0;
-}
 
 // static
 int Bytecodes::NumberOfOperands(Bytecode bytecode) {