Revert "Add 'Match type' to list of filter properties to validate"

This reverts commit 5e12bf9 which
caused a regression (system notice when displaying the match type filter
criteria, or application error 203 when trying to apply the filter).

The change made match_type a multivalue property, which caused it to be
converted to an array by filter_ensure_valid_filter().

Issue #20105

core/filter_api.php

@@ -698,7 +698,6 @@ function filter_ensure_valid_filter( array $p_filter_arr ) {
 		FILTER_PROPERTY_TARGET_VERSION => 'string',
 		FILTER_PROPERTY_MONITOR_USER_ID => 'int',
 		FILTER_PROPERTY_PROFILE_ID => 'int',
-		FILTER_PROPERTY_MATCH_TYPE => 'int',
 	);
 	foreach( $t_multi_select_list as $t_multi_field_name => $t_multi_field_type ) {
 		if( !isset( $p_filter_arr[$t_multi_field_name] ) ) {