MDEV-31846: enable cursor protocol for test federatedx_create_handlers

Per comment it code - it can be removed 10.5+.

Not in the comment, is the SELECT INTO ... parts still required
cursor protocol exclusion.

mysql-test/suite/federated/federatedx_create_handlers.test

@@ -7,9 +7,6 @@ connection default;
 
 set global federated_pushdown=1;
 
-#Enable after fix MDEV-31846 or in v. 10.5 and later
---disable_cursor_protocol
-
 connection slave;
 
 DROP TABLE IF EXISTS federated.t1;
@@ -165,11 +162,13 @@ insert into federated.t4 select * from federated.t1;
 --sorted_result
 select * from federated.t4;
 
+--disable_cursor_protocol
 select name into @var from federated.t1 where id=3 limit 1 ;
 select @var;
 --disable_ps2_protocol
 select name into outfile 'tmp.txt' from federated.t1;
 --enable_ps2_protocol
+--enable_cursor_protocol
 
 let $path=`select concat(@@datadir, 'test/tmp.txt')`;
 remove_file $path;
@@ -436,7 +435,5 @@ DEALLOCATE PREPARE stmt;
 
 set global federated_pushdown=0;
 
---enable_cursor_protocol
-
 source include/federated_cleanup.inc;