[fullcodegen] Remove exception handling support.

src/utils.h

Index: src/utils.h
diff --git a/src/utils.h b/src/utils.h
index bd5589cc895196827e55e2ec8b245f087507329e..db43381a517cb9fc3f7fdfab49e99d9f7106a017 100644
--- a/src/utils.h
+++ b/src/utils.h
@@ -946,19 +946,6 @@ class BailoutId {
   int id_;
 };
 
-class TokenDispenserForFinally {
- public:
-  int GetBreakContinueToken() { return next_token_++; }
-  static const int kFallThroughToken = 0;
-  static const int kThrowToken = 1;
-  static const int kReturnToken = 2;
-
-  static const int kFirstBreakContinueToken = 3;
-  static const int kInvalidToken = -1;
-
- private:
-  int next_token_ = kFirstBreakContinueToken;
-};
 
 // ----------------------------------------------------------------------------
 // I/O support.