Deprecate phone number discovery notification

ts/components/conversation/TimelineItem.tsx

@@ -50,8 +50,6 @@ import type { PropsType as PaymentEventNotificationPropsType } from './PaymentEv
 import { PaymentEventNotification } from './PaymentEventNotification';
 import type { PropsDataType as ConversationMergeNotificationPropsType } from './ConversationMergeNotification';
 import { ConversationMergeNotification } from './ConversationMergeNotification';
-import type { PropsDataType as PhoneNumberDiscoveryNotificationPropsType } from './PhoneNumberDiscoveryNotification';
-import { PhoneNumberDiscoveryNotification } from './PhoneNumberDiscoveryNotification';
 import type { FullJSXType } from '../Intl';
 import { TimelineMessage } from './TimelineMessage';
 
@@ -119,10 +117,6 @@ type ConversationMergeNotificationType = {
   type: 'conversationMerge';
   data: ConversationMergeNotificationPropsType;
 };
-type PhoneNumberDiscoveryNotificationType = {
-  type: 'phoneNumberDiscovery';
-  data: PhoneNumberDiscoveryNotificationPropsType;
-};
 type PaymentEventType = {
   type: 'paymentEvent';
   data: Omit<PaymentEventNotificationPropsType, 'i18n'>;
@@ -138,7 +132,6 @@ export type TimelineItemType = (
   | GroupV1MigrationType
   | GroupV2ChangeType
   | MessageType
-  | PhoneNumberDiscoveryNotificationType
   | ProfileChangeNotificationType
   | ResetSessionNotificationType
   | SafetyNumberNotificationType
@@ -319,14 +312,6 @@ export class TimelineItem extends React.PureComponent<PropsType> {
             i18n={i18n}
           />
         );
-      } else if (item.type === 'phoneNumberDiscovery') {
-        notification = (
-          <PhoneNumberDiscoveryNotification
-            {...reducedProps}
-            {...item.data}
-            i18n={i18n}
-          />
-        );
       } else if (item.type === 'resetSessionNotification') {
         notification = (
           <ResetSessionNotification {...reducedProps} i18n={i18n} />