[ios, macos] Update minimum deployment versions to iOS 9, macOS 10.11 (#11776)

* [ios] Remove iOS 8 conditionals

* [ios, macos] Bump pod deployment targets

* [ios, macos] Add changelog entries

* [ios, macos] Update docs

* Remove unnecessary selector-based version checks

* Update SQLite note

* [ios, macos] Replace lightweight generics macros with direct use
   Lightweight generics for Foundation collections are available everywhere with the bump to iOS 9 and macOS 10.11.

* Update deprecated macOS method

1 files changed, 2 insertions, 4 deletions

diff --git a/platform/ios/app/MBXOfflinePacksTableViewController.m b/platform/ios/app/MBXOfflinePacksTableViewController.m
index 26a15a0b95..959ae57548 100644
--- a/platform/ios/app/MBXOfflinePacksTableViewController.m
+++ b/platform/ios/app/MBXOfflinePacksTableViewController.m
@@ -45,7 +45,7 @@ static NSString * const MBXOfflinePacksTableViewActiveCellReuseIdentifier = @"Ac
     [[NSNotificationCenter defaultCenter] removeObserver:self];
 }
 
-- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NS_DICTIONARY_OF(NSString *, id) *)change context:(void *)context {
+- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary<NSString *, id> *)change context:(void *)context {
     if ([keyPath isEqualToString:@"packs"]) {
         NSKeyValueChange changeKind = [change[NSKeyValueChangeKindKey] unsignedIntegerValue];
         NSIndexSet *indices = change[NSKeyValueChangeIndexesKey];
@@ -119,9 +119,7 @@ static NSString * const MBXOfflinePacksTableViewActiveCellReuseIdentifier = @"Ac
         }];
     }];
     [alertController addAction:downloadAction];
-    if ([alertController respondsToSelector:@selector(setPreferredAction:)]) {
-        alertController.preferredAction = downloadAction;
-    }
+    alertController.preferredAction = downloadAction;
 
     [self presentViewController:alertController animated:YES completion:nil];
 }