Remove unused feature flag mixins from DAST Site Profile

ee/app/assets/javascripts/on_demand_scans/components/profile_selector/site_profile_summary.vue

@@ -4,7 +4,6 @@ import {
   TARGET_TYPES,
 } from 'ee/security_configuration/dast_site_profiles_form/constants';
 import { s__ } from '~/locale';
-import glFeatureFlagsMixin from '~/vue_shared/mixins/gl_feature_flags_mixin';
 import ProfileSelectorSummaryCell from './summary_cell.vue';
 
 export default {
@@ -23,7 +22,6 @@ export default {
   components: {
     ProfileSelectorSummaryCell,
   },
-  mixins: [glFeatureFlagsMixin()],
   props: {
     profile: {
       type: Object,

ee/app/assets/javascripts/security_configuration/dast_site_profiles_form/components/dast_site_profile_form.vue

@@ -16,7 +16,6 @@ import { initFormField } from 'ee/security_configuration/utils';
 import { serializeFormObject } from '~/lib/utils/forms';
 import { __, s__, n__, sprintf } from '~/locale';
 import validation from '~/vue_shared/directives/validation';
-import glFeatureFlagsMixin from '~/vue_shared/mixins/gl_feature_flags_mixin';
 import tooltipIcon from '../../dast_scanner_profiles/components/tooltip_icon.vue';
 import {
   MAX_CHAR_LIMIT_EXCLUDED_URLS,
@@ -48,7 +47,6 @@ export default {
   directives: {
     validation: validation(),
   },
-  mixins: [glFeatureFlagsMixin()],
   props: {
     fullPath: {
       type: String,