THRIFT-4679: Remove unused variable declaration
diff --git a/lib/nodejs/lib/thrift/json_protocol.js b/lib/nodejs/lib/thrift/json_protocol.js
index d960be9..727a3b2 100644
--- a/lib/nodejs/lib/thrift/json_protocol.js
+++ b/lib/nodejs/lib/thrift/json_protocol.js
@@ -18,7 +18,6 @@
  */
 
 var Int64 = require('node-int64');
-var InputBufferUnderrunError = require('./transport').InputBufferUnderrunError;
 var Thrift = require('./thrift');
 var Type = Thrift.Type;
 var util = require("util");