Remove test that does not apply for 10.4.

mysql-test/suite/galera/r/MDEV-22707.result

-CREATE TABLE t1(f2 INT) ENGINE=InnoDB;
-connect node_1_applier_thd, 127.0.0.1, root, , test, $NODE_MYPORT_1;
-SET GLOBAL debug_dbug = "+d,sync.wsrep_apply_cb";
-connection node_2;
-SET SESSION wsrep_sync_wait = 0;
-INSERT INTO t1 (f2) VALUES (2);
-connection node_1_applier_thd;
-SET SESSION DEBUG_SYNC = "now WAIT_FOR sync.wsrep_apply_cb_reached";
-connection node_1;
-SET SESSION wsrep_sync_wait = 0;
-SET DEBUG_SYNC = 'wsrep_before_replication SIGNAL wsrep_before_replication_reached WAIT_FOR continue';
-INSERT INTO t1 (f2) VALUES (1);
-connect node_1_flush_thd, 127.0.0.1, root, , test, $NODE_MYPORT_1;
-SET DEBUG_SYNC="now WAIT_FOR wsrep_before_replication_reached";
-SET GLOBAL debug_dbug = "+d,sync.wsrep_before_mdl_wait";
-FLUSH TABLES;
-connect node_1_sync_release_thd, 127.0.0.1, root, , test, $NODE_MYPORT_1;
-SET GLOBAL debug_dbug = "";
-SET DEBUG_SYNC = "now SIGNAL signal.wsrep_before_mdl_wait";
-SET DEBUG_SYNC = "now SIGNAL signal.wsrep_apply_cb";
-SET DEBUG_SYNC = "now SIGNAL continue";
-SET DEBUG_SYNC = "RESET";
-connection node_1;
-connection node_1_flush_thd;
-connection node_2;
-DROP TABLE t1;

mysql-test/suite/galera/t/MDEV-22707.test

-#
-# MDEV-22707 galera got stuck after flush tables
-#
-
---source include/galera_cluster.inc
---source include/have_innodb.inc
---source include/have_debug.inc
---source include/have_debug_sync.inc
-
-CREATE TABLE t1(f2 INT) ENGINE=InnoDB;
-
---connect node_1_applier_thd, 127.0.0.1, root, , test, $NODE_MYPORT_1
-SET GLOBAL debug_dbug = "+d,sync.wsrep_apply_cb";
-
---connection node_2
-SET SESSION wsrep_sync_wait = 0;
---send INSERT INTO t1 (f2) VALUES (2)
-
---connection node_1_applier_thd
-# Wait for `sync.wsrep_apply_cb_reached` signal
-SET SESSION DEBUG_SYNC = "now WAIT_FOR sync.wsrep_apply_cb_reached";
-
---connection node_1
-SET SESSION wsrep_sync_wait = 0;
-SET DEBUG_SYNC = 'wsrep_before_replication SIGNAL wsrep_before_replication_reached WAIT_FOR continue';
---send INSERT INTO t1 (f2) VALUES (1)
-
---connect node_1_flush_thd, 127.0.0.1, root, , test, $NODE_MYPORT_1
-SET DEBUG_SYNC="now WAIT_FOR wsrep_before_replication_reached";
-SET GLOBAL debug_dbug = "+d,sync.wsrep_before_mdl_wait";
---send FLUSH TABLES
-
---connect node_1_sync_release_thd, 127.0.0.1, root, , test, $NODE_MYPORT_1
-# First clear all DBUG points
-SET GLOBAL debug_dbug = "";
-# Now signal threads to continue execution
-SET DEBUG_SYNC = "now SIGNAL signal.wsrep_before_mdl_wait";
-SET DEBUG_SYNC = "now SIGNAL signal.wsrep_apply_cb";
-SET DEBUG_SYNC = "now SIGNAL continue";
-SET DEBUG_SYNC = "RESET";
-
---connection node_1
---reap
-
---connection node_1_flush_thd
---reap
-
---connection node_2
---reap
-
-DROP TABLE t1;