Removes unnecessary @available annotations

AltStore/AppDelegate.swift

@@ -119,7 +119,6 @@ final class AppDelegate: UIResponder, UIApplicationDelegate {
     }
 }
 
-@available(iOS 13, *)
 extension AppDelegate
 {
     func application(_ application: UIApplication, configurationForConnecting connectingSceneSession: UISceneSession, options: UIScene.ConnectionOptions) -> UISceneConfiguration

AltStore/Extensions/INInteraction+AltStore.swift

@@ -8,8 +8,6 @@
 
 import Intents
 
-// Requires iOS 14 in-app intent handling.
-@available(iOS 14, *)
 extension INInteraction
 {
     static func refreshAllApps() -> INInteraction

AltStore/Extensions/UIDevice+Jailbreak.swift

@@ -29,7 +29,6 @@ extension UIDevice
         }
     }
     
-    @available(iOS 14, *)
     var supportsFugu14: Bool {
         #if targetEnvironment(simulator)
         return true
@@ -40,7 +39,6 @@ extension UIDevice
         #endif
     }
     
-    @available(iOS 14, *)
     var isUntetheredJailbreakRequired: Bool {
         let ios14_4 = OperatingSystemVersion(majorVersion: 14, minorVersion: 4, patchVersion: 0)
         

AltStore/Extensions/UIDevice+Vibration.swift

@@ -16,7 +16,6 @@ private extension SystemSoundID
     static let tryAgain = SystemSoundID(1102)
 }
 
-@available(iOS 13, *)
 extension UIDevice
 {
     enum VibrationPattern
@@ -26,7 +25,6 @@ extension UIDevice
     }
 }
 
-@available(iOS 13, *)
 extension UIDevice
 {
     var isVibrationSupported: Bool {

AltStore/Intents/IntentHandler.swift

@@ -103,7 +103,6 @@ final class IntentHandler: NSObject, RefreshAllIntentHandling
     }
 }
 
-@available(iOS 14, *)
 private extension IntentHandler
 {
     func finish(_ intent: RefreshAllIntent, response: RefreshAllIntentResponse)

AltStore/Managing Apps/AppManager.swift

@@ -94,7 +94,6 @@ final class AppManager
         self.progressLock.deallocate()
     }
     
-    @available(iOS 13, *)
     func prepareSubscriptions()
     {
         /// Every time refreshProgress is changed, update all InstalledApps in memory
@@ -704,7 +703,6 @@ extension AppManager
         self.run([removeAppOperation, removeAppBackupOperation], context: authenticationContext)
     }
     
-    @available(iOS 14, *)
     func enableJIT(for installedApp: InstalledApp, completionHandler: @escaping (Result<Void, Error>) -> Void)
     {
         final class Context: OperationContext, EnableJITContext
@@ -733,7 +731,6 @@ extension AppManager
         self.run([enableJITOperation], context: context, requiresSerialQueue: true)
     }
     
-    @available(iOS 14.0, *)
     func patch(resignedApp: ALTApplication, presentingViewController: UIViewController, context authContext: AuthenticatedOperationContext, completionHandler: @escaping (Result<InstalledApp, Error>) -> Void) -> PatchAppOperation
     {
         final class Context: InstallAppOperationContext, PatchAppContext

AltStore/My Apps/MyAppsViewController.swift

@@ -1388,7 +1388,6 @@ private extension MyAppsViewController
         }
     }
     
-    @available(iOS 14, *)
     func enableJIT(for installedApp: InstalledApp)
     {
         
@@ -1641,7 +1640,6 @@ extension MyAppsViewController
     }
 }
 
-@available(iOS 13.0, *)
 extension MyAppsViewController
 {
     private func actions(for installedApp: InstalledApp) -> [UIMenuElement]

AltStore/Operations/Patch App/PatchAppOperation.swift

@@ -15,7 +15,6 @@ import AltStoreCore
 import AltSign
 import Roxas
 
-@available(iOS 14, *)
 protocol PatchAppContext
 {
     var bundleIdentifier: String { get }
@@ -146,7 +145,6 @@ private let ALTFragmentZipCallback: @convention(c) (UInt32) -> Void = { (percent
     progress.completedUnitCount = Int64(percentageComplete)
 }
 
-@available(iOS 14, *)
 private extension PatchAppOperation
 {
     func fetchOTAUpdate() -> AnyPublisher<OTAUpdate, Error>

AltStore/Operations/Patch App/PatchViewController.swift

@@ -13,7 +13,6 @@ import AltStoreCore
 import AltSign
 import Roxas
 
-@available(iOS 14.0, *)
 extension PatchViewController
 {
     enum Step
@@ -99,7 +98,6 @@ final class PatchViewController: UIViewController
     }
 }
 
-@available(iOS 14.0, *)
 private extension PatchViewController
 {
     func update()
@@ -212,7 +210,6 @@ private extension PatchViewController
     }
 }
 
-@available(iOS 14.0, *)
 private extension PatchViewController
 {
     @IBAction func performButtonAction()
@@ -254,7 +251,6 @@ private extension PatchViewController
     }
 }
 
-@available(iOS 14.0, *)
 private extension PatchViewController
 {
     func startProcess()

AltStore/SceneDelegate.swift

@@ -75,7 +75,6 @@ final class SceneDelegate: UIResponder, UIWindowSceneDelegate
     }
 }
 
-@available(iOS 13.0, *)
 private extension SceneDelegate
 {
     func open(_ context: UIOpenURLContext)

AltStore/Settings/SettingsViewController.swift

@@ -390,7 +390,6 @@ private extension SettingsViewController
         }
     }
     
-    @available(iOS 14, *)
     @IBAction func addRefreshAppsShortcut()
     {
         guard let shortcut = INShortcut(intent: INInteraction.refreshAllApps().intent) else { return }

AltStore/Sources/SourcesViewController.swift

@@ -586,7 +586,6 @@ extension SourcesViewController: UICollectionViewDelegateFlowLayout
     }
 }
 
-@available(iOS 13, *)
 extension SourcesViewController
 {
     override func collectionView(_ collectionView: UICollectionView, contextMenuConfigurationForItemAt indexPath: IndexPath, point: CGPoint) -> UIContextMenuConfiguration?

AltStoreCore/Intents/ViewAppIntentHandler.swift

@@ -9,7 +9,6 @@
 import Intents
 import AltStoreCore
 
-@available(iOS 14, *)
 public class ViewAppIntentHandler: NSObject, ViewAppIntentHandling
 {
     public func provideAppOptionsCollection(for intent: ViewAppIntent, with completion: @escaping (INObjectCollection<App>?, Error?) -> Void)

AltStoreCore/Patreon/PatreonAPI.swift

@@ -425,7 +425,6 @@ private extension PatreonAPI
     }
 }
 
-@available(iOS 13.0, *)
 extension PatreonAPI: ASWebAuthenticationPresentationContextProviding
 {
     public func presentationAnchor(for session: ASWebAuthenticationSession) -> ASPresentationAnchor