[t:2394] remove unused variable

git-svn-id: file:///svn/mysql/tokudb-engine/tokudb-engine@17985 c7de825b-a66e-492c-adef-691d508d4ae1

storage/tokudb/ha_tokudb.h

@@ -463,7 +463,6 @@ class ha_tokudb : public handler {
 
     void track_progress(THD* thd);
 
-    int heavi_ret_val;
 
     //
     // index into key_file that holds DB* that is indexed on