fix mtr warnings after 5f051022

mysql-test/r/grant.result

@@ -1447,6 +1447,7 @@ CURRENT_USER()
 root@localhost
 SET PASSWORD FOR CURRENT_USER() = PASSWORD("admin");
 SET PASSWORD FOR CURRENT_USER() = PASSWORD("");
+update mysql.user set plugin='';
 
 # Bug#57952
 

mysql-test/r/sp-security.result

@@ -755,6 +755,7 @@ GRANT EXECUTE ON PROCEDURE `test`.`sp1` TO 'root'@'localhost'
 GRANT PROXY ON ''@'%' TO 'root'@'localhost' WITH GRANT OPTION
 drop procedure sp1;
 set password='';
+update mysql.user set plugin='';
 #
 # MDEV-13396 Unexpected "alter routine comand defined" during CREATE OR REPLACE PROCEDURE
 #

mysql-test/suite/roles/grant_revoke_current.result

@@ -39,4 +39,5 @@ GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost' IDENTIFIED BY PASSWORD '*34391
 GRANT PROXY ON ''@'%' TO 'root'@'localhost' WITH GRANT OPTION
 GRANT USAGE ON *.* TO 'r1'
 set password='';
+update mysql.user set plugin='';
 drop role r1;

mysql-test/suite/roles/grant_revoke_current.test

@@ -25,5 +25,7 @@ show grants;
 grant r1 to current_user() identified by 'barfoo';
 show grants;
 set password='';
+#cleanup after MDEV-16238
+update mysql.user set plugin='';
 
 drop role r1;

mysql-test/suite/roles/set_default_role_ps-6960.result

@@ -6,3 +6,4 @@ execute stmt;
 set password = '';
 set default role NONE;
 drop role r1;
+update mysql.user set plugin='';

mysql-test/suite/roles/set_default_role_ps-6960.test

@@ -13,3 +13,5 @@ execute stmt;
 set password = '';
 set default role NONE;
 drop role r1;
+#cleanup after MDEV-16238
+update mysql.user set plugin='';

mysql-test/t/grant.test

@@ -1265,6 +1265,9 @@ SELECT CURRENT_USER();
 SET PASSWORD FOR CURRENT_USER() = PASSWORD("admin");
 SET PASSWORD FOR CURRENT_USER() = PASSWORD("");
 
+#cleanup after MDEV-16238
+update mysql.user set plugin='';
+
 #
 # Bug#57952: privilege change is not taken into account by EXECUTE.
 #

mysql-test/t/sp-security.test

@@ -1023,6 +1023,8 @@ grant execute on procedure sp1 to current_user() identified by 'barfoo';
 show grants;
 drop procedure sp1;
 set password='';
+#cleanup after MDEV-16238
+update mysql.user set plugin='';
 
 --echo #
 --echo # MDEV-13396 Unexpected "alter routine comand defined" during CREATE OR REPLACE PROCEDURE