cleanup: quoted_string

sql/mysqld.cc

@@ -304,7 +304,6 @@ static TYPELIB tc_heuristic_recover_typelib=
 
 const char *first_keyword= "first";
 const char *my_localhost= "localhost", *delayed_user= "DELAYED";
-const char *quoted_string= "%`s";
 
 bool opt_large_files= sizeof(my_off_t) > 4;
 static my_bool opt_autocommit; ///< for --autocommit command-line option

sql/mysqld.h

@@ -302,7 +302,6 @@ extern my_bool encrypt_binlog;
 extern my_bool encrypt_tmp_disk_tables, encrypt_tmp_files;
 extern ulong encryption_algorithm;
 extern const char *encryption_algorithm_names[];
-extern const char *quoted_string;
 
 #ifdef HAVE_PSI_INTERFACE
 #ifdef HAVE_MMAP

sql/sql_db.cc

@@ -993,8 +993,7 @@ mysql_rm_db_internal(THD *thd, const LEX_CSTRING *db, bool if_exists, bool silen
       if (ha_table_exists(thd, &tbl->db, &tbl->table_name))
         continue;
 
-      tbl_name_len= my_snprintf(quoted_name, sizeof(quoted_name),
-                                quoted_string,
+      tbl_name_len= my_snprintf(quoted_name, sizeof(quoted_name), "%`s",
                                 tbl->table_name.str);
       tbl_name_len++;                           /* +1 for the comma */
       if (query_pos + tbl_name_len + 1 >= query_end)