cleanup: remove unused THD::COND_wsrep_thd

mysql-test/suite/perfschema/r/all_instances.result

@@ -152,7 +152,6 @@ wait/synch/cond/sql/Relay_log_info::sleep_cond
 wait/synch/cond/sql/Relay_log_info::start_cond
 wait/synch/cond/sql/Relay_log_info::stop_cond
 wait/synch/cond/sql/THD::COND_wakeup_ready
-wait/synch/cond/sql/THD::COND_wsrep_thd
 select event_name from file_instances group by event_name;
 event_name
 wait/io/file/aria/control

sql/mysqld.cc

@@ -916,7 +916,7 @@ PSI_cond_key key_BINLOG_COND_prep_xids, key_BINLOG_update_cond,
   key_COND_thread_count, key_COND_thread_cache, key_COND_flush_thread_cache,
   key_BINLOG_COND_queue_busy;
 #ifdef WITH_WSREP
-PSI_cond_key key_COND_wsrep_rollback, key_COND_wsrep_thd, 
+PSI_cond_key key_COND_wsrep_rollback,
   key_COND_wsrep_replaying, key_COND_wsrep_ready, key_COND_wsrep_sst,
   key_COND_wsrep_sst_init, key_COND_wsrep_sst_thread;
 #endif /* WITH_WSREP */
@@ -967,7 +967,6 @@ static PSI_cond_info all_server_conds[]=
   { &key_COND_wsrep_sst_init, "COND_wsrep_sst_init", PSI_FLAG_GLOBAL},
   { &key_COND_wsrep_sst_thread, "wsrep_sst_thread", 0},
   { &key_COND_wsrep_rollback, "COND_wsrep_rollback", PSI_FLAG_GLOBAL},
-  { &key_COND_wsrep_thd, "THD::COND_wsrep_thd", 0},
   { &key_COND_wsrep_replaying, "COND_wsrep_replaying", PSI_FLAG_GLOBAL},
 #endif
   { &key_COND_flush_thread_cache, "COND_flush_thread_cache", PSI_FLAG_GLOBAL}

sql/mysqld.h

@@ -222,7 +222,6 @@ extern PSI_mutex_key key_PAGE_lock, key_LOCK_sync, key_LOCK_active,
 #endif /* HAVE_MMAP */
 #ifdef WITH_WSREP
 extern PSI_mutex_key key_LOCK_wsrep_thd;
-extern PSI_cond_key  key_COND_wsrep_thd;
 #endif /* HAVE_WSREP */
 
 #ifdef HAVE_OPENSSL

sql/sql_class.cc

@@ -1103,7 +1103,6 @@ THD::THD()
 
 #ifdef WITH_WSREP
   mysql_mutex_init(key_LOCK_wsrep_thd, &LOCK_wsrep_thd, MY_MUTEX_INIT_FAST);
-  mysql_cond_init(key_COND_wsrep_thd, &COND_wsrep_thd, NULL);
   wsrep_ws_handle.trx_id = WSREP_UNDEFINED_TRX_ID;
   wsrep_ws_handle.opaque = NULL;
   wsrep_retry_counter     = 0;

sql/sql_class.h

@@ -2366,7 +2366,6 @@ public:
   enum wsrep_query_state    wsrep_query_state;
   enum wsrep_conflict_state wsrep_conflict_state;
   mysql_mutex_t             LOCK_wsrep_thd;
-  mysql_cond_t              COND_wsrep_thd;
   // changed from wsrep_seqno_t to wsrep_trx_meta_t in wsrep API rev 75
   // wsrep_seqno_t             wsrep_trx_seqno;
   wsrep_trx_meta_t          wsrep_trx_meta;