MDEV-34915 track session variables - test adjust

With MDEV-34915 adjusting the mtr output of session
variables to be in order, the original variable omission for
x86_32 (added by MDEV-31609 - e0b6db2) is no longer required.

Author: grooverdan

mysql-test/suite/sys_vars/r/session_track_system_variables_basic.result

@@ -154,17 +154,15 @@ SET @@global.session_track_system_variables = @global_saved_tmp;
 #
 # MDEV-31609 Send initial values of system variables in first OK packet
 #
-set @old_session_track_system_variables=@@global.session_track_system_variables;
-set global session_track_system_variables="autocommit,character_set_client,character_set_connection,redirect_url,time_zone";
 connect foo,localhost,root;
 -- Tracker : SESSION_TRACK_SYSTEM_VARIABLES
 -- autocommit: ON
 -- character_set_client: latin1
 -- character_set_connection: latin1
+-- character_set_results: latin1
 -- redirect_url: 
 -- time_zone: SYSTEM
 
 connection default;
 disconnect foo;
-set global session_track_system_variables=@old_session_track_system_variables;
 # End of tests 11.5

mysql-test/suite/sys_vars/t/session_track_system_variables_basic.test

@@ -129,18 +129,12 @@ SET @@global.session_track_system_variables = @global_saved_tmp;
 --echo # MDEV-31609 Send initial values of system variables in first OK packet
 --echo #
 
-set @old_session_track_system_variables=@@global.session_track_system_variables;
-# We set the session_track_system_variables to exclude
-# character_set_results as it can appear out of order in the CI
-# builder x86-debian-sid.
-set global session_track_system_variables="autocommit,character_set_client,character_set_connection,redirect_url,time_zone";
 enable_session_track_info;
 
 connect foo,localhost,root;
 
 disable_session_track_info;
 connection default;
 disconnect foo;
-set global session_track_system_variables=@old_session_track_system_variables;
 
 --echo # End of tests 11.5