remove cleanup codes in fetchdata() since libcurl encourages to re-use handle
remove cleanup codes in fetchdata() since libcurl encourages to re-use handle

GPDBUnite/gps3ext,lij55/gps3ext,GPDBUnite/gps3ext,lij55/gps3ext,GPDBUnite/gps3ext,lij55/gps3ext,lij55/gps3ext,GPDBUnite/gps3ext