fix clang build

sql/sql_table.cc

@@ -2241,7 +2241,7 @@ int mysql_rm_table_no_locks(THD *thd, TABLE_LIST *tables, bool if_exists,
   bool trans_tmp_table_deleted= 0, non_trans_tmp_table_deleted= 0;
   bool non_tmp_table_deleted= 0;
   bool is_drop_tmp_if_exists_added= 0;
-  bool was_view= 0, was_table= 0, log_if_exists= if_exists;
+  bool was_view= 0, log_if_exists= if_exists;
   const char *object_to_drop= (drop_sequence) ? "SEQUENCE" : "TABLE";
   String normal_tables;
   String built_trans_tmp_query, built_non_trans_tmp_query;
@@ -2467,7 +2467,6 @@ int mysql_rm_table_no_locks(THD *thd, TABLE_LIST *tables, bool if_exists,
           . "DROP SEQUENCE", but it's not a sequence
       */
       wrong_drop_sequence= drop_sequence && hton;
-      was_table|= wrong_drop_sequence;
       error= table_type == TABLE_TYPE_UNKNOWN ? ENOENT : -1;
       tdc_remove_table(thd, db.str, table_name.str);
     }