remove redunant method

// FREEBIE

Signal/src/contact/OWSContactsManager.h

@@ -28,7 +28,6 @@ typedef void (^ABReloadRequestCompletionBlock)(NSArray *contacts);
 
 - (NSArray<Contact *> *)allContacts;
 - (NSArray<Contact *> *)signalContacts;
-- (NSArray *)textSecureContacts;
 
 - (void)doAfterEnvironmentInitSetup;
 

Signal/src/contact/OWSContactsManager.m

@@ -394,12 +394,6 @@ void onAddressBookChanged(ABAddressBookRef notifyAddressBook, CFDictionaryRef in
     return [self getSignalUsersFromContactsArray:[self allContacts]];
 }
 
-- (NSArray *)textSecureContacts {
-    return [[self.allContacts filter:^int(Contact *contact) {
-      return [contact isSignalContact];
-    }] sortedArrayUsingComparator:[[self class] contactComparator]];
-}
-
 - (NSString *)nameStringForPhoneIdentifier:(NSString *)identifier {
     if (!identifier) {
         return NSLocalizedString(@"UNKNOWN_CONTACT_NAME",

Signal/src/view controllers/NewGroupViewController.m

@@ -72,7 +72,7 @@ static NSString *const kUnwindToMessagesViewSegue = @"UnwindToMessagesViewSegue"
     [super viewDidLoad];
     [self.navigationController.navigationBar setTranslucent:NO];
 
-    contacts = [Environment getCurrent].contactsManager.textSecureContacts;
+    contacts = [Environment getCurrent].contactsManager.signalContacts;
 
 
     self.tableView.tableHeaderView.frame = CGRectMake(0, 0, 400, 44);