MDEV-7181: innodb.innodb_defrag_concurrent fails in buildbot

Problem was that test tried to calculate number of pages on
buffer pool and operations done to them. This is not realible
way on buildbot.

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

@@ -5,30 +5,24 @@ select @@global.innodb_stats_persistent;
 set global innodb_defragment_stats_accuracy = 80;
 CREATE TABLE t1 (a INT NOT NULL PRIMARY KEY AUTO_INCREMENT, b VARCHAR(256), c INT, KEY second(a, b),KEY third(c)) ENGINE=INNODB;
 SET @@global.innodb_defragment_n_pages = 20;
-after populate PRIMARY
 select count(*) from t1;
 count(*)
 20000
-after populate second
 select count(*) from t1 force index (second);
 count(*)
 20000
-after populate third
 select count(*) from t1 force index (third);
 count(*)
 20000
 select count(*) from t1;
 count(*)
 15800
-after delete PRIMAY
 select count(*) from t1 force index (second);
 count(*)
 15800
-after delete second
 select count(*) from t1 force index (third);
 count(*)
 15800
-after delete third
 select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name  in ('n_pages_freed');
 count(stat_value) > 0
 0
@@ -46,21 +40,15 @@ UPDATE t1 SET c = c + 1 where c between 2000 and 8000;;
 optimize table t1;
 Table	Op	Msg_type	Msg_text
 test.t1	optimize	status	OK
-select sleep(5);
-sleep(5)
-0
 select count(*) from t1;
 count(*)
 15723
-after optimize PRIMARY
 select count(*) from t1 force index (second);
 count(*)
 15723
-after optimize second
 select count(*) from t1 force index (third);
 count(*)
 15723
-after optimize third
 select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name  in ('n_pages_freed');
 count(stat_value) > 0
 1

mysql-test/suite/innodb/t/innodb_defrag_concurrent.test

@@ -41,30 +41,10 @@ while ($i)
 }
 --enable_query_log
 
---echo after populate PRIMARY
 select count(*) from t1; 
-
-if (`select count(*) < 30 from information_schema.innodb_buffer_page where table_name like '%t1%' and index_name = 'PRIMARY' order by page_number;`)
-{
-aelect count(*) from information_schema.innodb_buffer_page where table_name like '%t1%' and index_name = 'PRIMARY' order by page_number;
-}
-
---echo after populate second
 select count(*) from t1 force index (second);
-
-if (`select count(*) < 320 from information_schema.innodb_buffer_page where table_name like '%t1%' and index_name = 'second' order by page_number;`)
-{
-select count(*) from information_schema.innodb_buffer_page where table_name like '%t1%' and index_name = 'second' order by page_number;
-}
-
---ECHO after populate third
 select count(*) from t1 force index (third);
 
-if (`select count(*) < 20 from information_schema.innodb_buffer_page where table_name like '%t1%' and index_name = 'third' order by page_number;`)
-{
-select count(*) from information_schema.innodb_buffer_page where table_name like '%t1%' and index_name = 'third' order by page_number;
-}
-
 # Delete some data
 --disable_query_log
 let $size = $delete_size;
@@ -77,29 +57,9 @@ while ($size)
 --enable_query_log
 
 select count(*) from t1; 
-
---echo after delete PRIMAY
-if (`select count(*) < 30 from information_schema.innodb_buffer_page where table_name like '%t1%' and index_name = 'PRIMARY' order by page_number;`)
-{
-select count(*) from information_schema.innodb_buffer_page where table_name like '%t1%' and index_name = 'PRIMARY' order by page_number;
-}
-
 select count(*) from t1 force index (second);
-
---echo after delete second
-if (`select count(*) < 300 from information_schema.innodb_buffer_page where table_name like '%t1%' and index_name = 'second' order by page_number;`)
-{
-select count(*) from information_schema.innodb_buffer_page where table_name like '%t1%' and index_name = 'second' order by page_number;
-}
-
 select count(*) from t1 force index (third);
 
---echo after delete third
-if (`select count(*) > 20 from information_schema.innodb_buffer_page where table_name like '%t1%' and index_name = 'third' order by page_number;`)
-{
-select count(*) from information_schema.innodb_buffer_page where table_name like '%t1%' and index_name = 'third' order by page_number;
-}
-
 # Above delete will free some pages and insert causes page split and these could cause defrag
 select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name  in ('n_pages_freed');
 select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name  in ('n_page_split');
@@ -143,32 +103,11 @@ disconnect con3;
 disconnect con4;
 
 optimize table t1;
-select sleep(5);
 
 select count(*) from t1;
-
---echo after optimize PRIMARY
-if (`select count(*) > 62 from information_schema.innodb_buffer_page where table_name like '%t1%' and index_name = 'PRIMARY' order by page_number;`)
-{
-select count(*) from information_schema.innodb_buffer_page where table_name like '%t1%' and index_name = 'PRIMARY' order by page_number;
-}
-
 select count(*) from t1 force index (second);
-
---echo after optimize second
-if (`select count(*) >  340 from information_schema.innodb_buffer_page where table_name like '%t1%' and index_name = 'second' order by page_number;`)
-{
-select count(*) from information_schema.innodb_buffer_page where table_name like '%t1%' and index_name = 'second' order by page_number;
-}
-
 select count(*) from t1 force index (third);
 
---echo after optimize third
-if (`select count(*) > 25 from information_schema.innodb_buffer_page where table_name like '%t1%' and index_name = 'third' order by page_number;`)
-{
-select count(*) from information_schema.innodb_buffer_page where table_name like '%t1%' and index_name = 'third' order by page_number;
-}
-
 # Now pages are freed
 select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name  in ('n_pages_freed');
 select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name  in ('n_page_split');