Change severity list in Mantis

Add the below line into config_inc.php to change the options in the severity list.
$g_severity_enum_string = ’10:feature,30:text,40:tweak,50:minor,60:major,70:crash,80:block’;

Or remove the severity field completely by adding the below array into config_inc.php.
$g_bug_report_page_fields = array(
‘additional_info’,
‘attachments’,
‘category_id’,
‘due_date’,
‘handler’,
‘os’,
‘os_version’,
‘platform’,
‘priority’,
‘product_build’,
‘product_version’,
‘reproducibility’,
// ‘severity’,
‘steps_to_reproduce’,
‘tags’,
‘target_version’,
‘view_state’,
);

Refer to the config_defaults_inc.php file for the details.

Reference:
https://mantisbt.org/forums/viewtopic.php?t=1193