feat: Remove special case for "me" update

I had to start with a special case for "me" update, because in Cozy
Contacts, relations were stored only in the contact who created the
relation.

So when "me" was updated, a relation of me could have been deleted,
and it was impossible to know which one easily, so it was impossible
to know if the contact should be removed from the extension.

With cozy/cozy-contacts#1020, relations are
propagated to the target contact.

So we will get a realtime event and we will be able to check if the
contact must be displayed or not without any special case.

apps/browser/src/cozy/realtime/RealtimeNotifications.ts

@@ -75,16 +75,6 @@ export class RealTimeNotifications {
   }
 
   async dispatchUpdateContact(data: IOCozyContact) {
-    if (data.me) {
-      // We need to do a fullSync here because we have no other way to know
-      // if a contact related to me was removed of the me relation
-      this.logService.info(`Starting full sync from realtime because me`);
-
-      this.messagingService.send("fullSync");
-
-      return;
-    }
-
     const contactMustBeDisplayed = await shouldDisplayContact(this.client, data);
 
     if (contactMustBeDisplayed) {