Remove flag from `SettingsProvider`

...ient/omnichannel/securityPrivacy/SecurityPrivacyRoute.tsx

apps/meteor/client/providers/SettingsProvider.tsx

apps/meteor/client/views/account/AccountSidebar.tsx

apps/meteor/client/views/admin/AdministrationRouter.tsx

...t/views/admin/featurePreview/AdminFeaturePreviewRoute.tsx

apps/meteor/client/views/admin/sidebar/AdminSidebar.tsx

apps/meteor/client/views/marketplace/MarketplaceSidebar.tsx

...r/client/views/omnichannel/sidebar/OmnichannelSidebar.tsx