Use matrix-analytics-events generated stubs (locally for now).

Track screens, removing any that aren't part of the schema.

Riot/Modules/Room/Search/Files/RoomFilesSearchViewController.m

@@ -109,9 +109,6 @@
 - (void)viewWillAppear:(BOOL)animated
 {
     [super viewWillAppear:animated];
-
-    // Screen tracking
-    [Analytics.shared trackScreen:@"RoomFilesSearch"];
     
     // Observe kAppDelegateDidTapStatusBarNotificationObserver.
     kAppDelegateDidTapStatusBarNotificationObserver = [[NSNotificationCenter defaultCenter] addObserverForName:kAppDelegateDidTapStatusBarNotification object:nil queue:[NSOperationQueue mainQueue] usingBlock:^(NSNotification *notif) {

Riot/Modules/Room/Search/Messages/RoomMessagesSearchViewController.m

@@ -111,9 +111,6 @@
 {
     [super viewWillAppear:animated];
 
-    // Screen tracking
-    [Analytics.shared trackScreen:@"RoomMessagesSearch"];
-
     // Observe kAppDelegateDidTapStatusBarNotificationObserver.
     kAppDelegateDidTapStatusBarNotificationObserver = [[NSNotificationCenter defaultCenter] addObserverForName:kAppDelegateDidTapStatusBarNotification object:nil queue:[NSOperationQueue mainQueue] usingBlock:^(NSNotification *notif) {
         

Riot/Modules/Room/Search/RoomSearchViewController.m

@@ -106,9 +106,6 @@
         [self.activityIndicator stopAnimating];
         self.activityIndicator = nil;
     }
-
-    // Screen tracking
-    [Analytics.shared trackScreen:@"RoomsSearch"];
     
     // Enable the search field by default at the screen opening
     if (self.searchBarHidden)