Delete unused modals and invite code stuff (#8244)

* delete waitlist modal, which doesn't exist

* delete invite code modal

* rip out copied invites persisted state

* delete invite query

* delete unused modal implementations

src/view/com/modals/Modal.web.tsx

@@ -7,7 +7,6 @@ import {useWebMediaQueries} from '#/lib/hooks/useWebMediaQueries'
 import {type Modal as ModalIface} from '#/state/modals'
 import {useModalControls, useModals} from '#/state/modals'
 import * as DeleteAccountModal from './DeleteAccount'
-import * as InviteCodesModal from './InviteCodes'
 import * as ContentLanguagesSettingsModal from './lang-settings/ContentLanguagesSettings'
 import * as UserAddRemoveLists from './UserAddRemoveLists'
 
@@ -51,8 +50,6 @@ function Modal({modal}: {modal: ModalIface}) {
     element = <UserAddRemoveLists.Component {...modal} />
   } else if (modal.name === 'delete-account') {
     element = <DeleteAccountModal.Component />
-  } else if (modal.name === 'invite-codes') {
-    element = <InviteCodesModal.Component />
   } else if (modal.name === 'content-languages-settings') {
     element = <ContentLanguagesSettingsModal.Component />
   } else {