MDEV-22858 Remove unused innodb_mem_validate_usec, innodb_master_purge_usec

MONITOR_SRV_MEM_VALIDATE_MICROSECOND, MEM_PERIODIC_CHECK,
SRV_MASTER_MEM_VALIDATE_INTERVAL: Remove. These were unused
ever since UNIV_MEM_DEBUG was removed.

MONITOR_SRV_PURGE_MICROSECOND: Remove. This was always unused.

mysql-test/suite/innodb/r/innodb_skip_innodb_is_tables.result

@@ -249,8 +249,6 @@ innodb_master_active_loops	server	0	NULL	NULL	NULL	0	NULL	NULL	NULL	NULL	NULL	NU
 innodb_master_idle_loops	server	0	NULL	NULL	NULL	0	NULL	NULL	NULL	NULL	NULL	NULL	NULL	0	counter	Number of times master thread performs its tasks when server is idle
 innodb_background_drop_table_usec	server	0	NULL	NULL	NULL	0	NULL	NULL	NULL	NULL	NULL	NULL	NULL	0	counter	Time (in microseconds) spent to process drop table list
 innodb_log_flush_usec	server	0	NULL	NULL	NULL	0	NULL	NULL	NULL	NULL	NULL	NULL	NULL	0	counter	Time (in microseconds) spent to flush log records
-innodb_mem_validate_usec	server	0	NULL	NULL	NULL	0	NULL	NULL	NULL	NULL	NULL	NULL	NULL	0	counter	Time (in microseconds) spent to do memory validation
-innodb_master_purge_usec	server	0	NULL	NULL	NULL	0	NULL	NULL	NULL	NULL	NULL	NULL	NULL	0	counter	Time (in microseconds) spent by master thread to purge records
 innodb_dict_lru_usec	server	0	NULL	NULL	NULL	0	NULL	NULL	NULL	NULL	NULL	NULL	NULL	0	counter	Time (in microseconds) spent to process DICT LRU list
 innodb_dict_lru_count_active	server	0	NULL	NULL	NULL	0	NULL	NULL	NULL	NULL	NULL	NULL	NULL	0	counter	Number of tables evicted from DICT LRU list in the active loop
 innodb_dict_lru_count_idle	server	0	NULL	NULL	NULL	0	NULL	NULL	NULL	NULL	NULL	NULL	NULL	0	counter	Number of tables evicted from DICT LRU list in the idle loop

mysql-test/suite/innodb/r/monitor.result

@@ -215,8 +215,6 @@ innodb_master_active_loops	disabled
 innodb_master_idle_loops	disabled
 innodb_background_drop_table_usec	disabled
 innodb_log_flush_usec	disabled
-innodb_mem_validate_usec	disabled
-innodb_master_purge_usec	disabled
 innodb_dict_lru_usec	disabled
 innodb_dict_lru_count_active	disabled
 innodb_dict_lru_count_idle	disabled

storage/innobase/include/srv0mon.h

@@ -399,8 +399,6 @@ enum monitor_id_t {
 	MONITOR_MASTER_IDLE_LOOPS,
 	MONITOR_SRV_BACKGROUND_DROP_TABLE_MICROSECOND,
 	MONITOR_SRV_LOG_FLUSH_MICROSECOND,
-	MONITOR_SRV_MEM_VALIDATE_MICROSECOND,
-	MONITOR_SRV_PURGE_MICROSECOND,
 	MONITOR_SRV_DICT_LRU_MICROSECOND,
 	MONITOR_SRV_DICT_LRU_EVICT_COUNT_ACTIVE,
 	MONITOR_SRV_DICT_LRU_EVICT_COUNT_IDLE,

storage/innobase/srv/srv0mon.cc

@@ -1194,16 +1194,6 @@ static monitor_info_t	innodb_counter_info[] =
 	 MONITOR_NONE,
 	 MONITOR_DEFAULT_START, MONITOR_SRV_LOG_FLUSH_MICROSECOND},
 
-	{"innodb_mem_validate_usec", "server",
-	 "Time (in microseconds) spent to do memory validation",
-	 MONITOR_NONE,
-	 MONITOR_DEFAULT_START, MONITOR_SRV_MEM_VALIDATE_MICROSECOND},
-
-	{"innodb_master_purge_usec", "server",
-	 "Time (in microseconds) spent by master thread to purge records",
-	 MONITOR_NONE,
-	 MONITOR_DEFAULT_START, MONITOR_SRV_PURGE_MICROSECOND},
-
 	{"innodb_dict_lru_usec", "server",
 	 "Time (in microseconds) spent to process DICT LRU list",
 	 MONITOR_NONE,

storage/innobase/srv/srv0srv.cc

@@ -459,9 +459,6 @@ current_time % 60 == 0 and no tasks will be performed when
 current_time % 5 != 0. */
 
 # define	SRV_MASTER_CHECKPOINT_INTERVAL		(7)
-#ifdef MEM_PERIODIC_CHECK
-# define	SRV_MASTER_MEM_VALIDATE_INTERVAL	(13)
-#endif /* MEM_PERIODIC_CHECK */
 # define	SRV_MASTER_DICT_LRU_INTERVAL		(47)
 
 /** Simulate compression failures. */

storage/rocksdb/mysql-test/rocksdb/r/innodb_i_s_tables_disabled.result

@@ -231,8 +231,6 @@ innodb_master_active_loops	server	0	NULL	NULL	NULL	0	NULL	NULL	NULL	NULL	NULL	NU
 innodb_master_idle_loops	server	0	NULL	NULL	NULL	0	NULL	NULL	NULL	NULL	NULL	NULL	NULL	0	counter	Number of times master thread performs its tasks when server is idle
 innodb_background_drop_table_usec	server	0	NULL	NULL	NULL	0	NULL	NULL	NULL	NULL	NULL	NULL	NULL	0	counter	Time (in microseconds) spent to process drop table list
 innodb_log_flush_usec	server	0	NULL	NULL	NULL	0	NULL	NULL	NULL	NULL	NULL	NULL	NULL	0	counter	Time (in microseconds) spent to flush log records
-innodb_mem_validate_usec	server	0	NULL	NULL	NULL	0	NULL	NULL	NULL	NULL	NULL	NULL	NULL	0	counter	Time (in microseconds) spent to do memory validation
-innodb_master_purge_usec	server	0	NULL	NULL	NULL	0	NULL	NULL	NULL	NULL	NULL	NULL	NULL	0	counter	Time (in microseconds) spent by master thread to purge records
 innodb_dict_lru_usec	server	0	NULL	NULL	NULL	0	NULL	NULL	NULL	NULL	NULL	NULL	NULL	0	counter	Time (in microseconds) spent to process DICT LRU list
 innodb_dict_lru_count_active	server	0	NULL	NULL	NULL	0	NULL	NULL	NULL	NULL	NULL	NULL	NULL	0	counter	Number of tables evicted from DICT LRU list in the active loop
 innodb_dict_lru_count_idle	server	0	NULL	NULL	NULL	0	NULL	NULL	NULL	NULL	NULL	NULL	NULL	0	counter	Number of tables evicted from DICT LRU list in the idle loop