Removes unnecessary @available annotations

AltStore/AppDelegate.swift

@@ -121,7 +121,6 @@ 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

@@ -10,7 +10,6 @@ import Foundation
 
 import AltStoreCore
 
-@available(iOS 14, *)
 class IntentHandler: NSObject, RefreshAllIntentHandling
 {
     private let queue = DispatchQueue(label: "io.altstore.IntentHandler")
@@ -91,7 +90,6 @@ class IntentHandler: NSObject, RefreshAllIntentHandling
     }
 }
 
-@available(iOS 14, *)
 private extension IntentHandler
 {
     func finish(_ intent: RefreshAllIntent, response: RefreshAllIntentResponse)

AltStore/Managing Apps/AppManager.swift

@@ -33,7 +33,6 @@ extension AppManager
     }
 }
 
-@available(iOS 13, *)
 class AppManagerPublisher: ObservableObject
 {
     @Published
@@ -92,7 +91,6 @@ class AppManager
         self.progressLock.deallocate()
     }
     
-    @available(iOS 13, *)
     func prepareSubscriptions()
     {
         /// Every time refreshProgress is changed, update all InstalledApps in memory
@@ -697,7 +695,6 @@ extension AppManager
         self.run([removeAppOperation, removeAppBackupOperation], context: authenticationContext)
     }
     
-    @available(iOS 14, *)
     func enableJIT(for installedApp: InstalledApp, completionHandler: @escaping (Result<Void, Error>) -> Void)
     {
         class Context: OperationContext, EnableJITContext
@@ -730,7 +727,6 @@ 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
     {
         class Context: InstallAppOperationContext, PatchAppContext

AltStore/My Apps/MyAppsViewController.swift

@@ -1415,7 +1415,6 @@ private extension MyAppsViewController
         }
     }
     
-    @available(iOS 14, *)
     func enableJIT(for installedApp: InstalledApp)
     {
         AppManager.shared.enableJIT(for: installedApp) { result in
@@ -1655,7 +1654,6 @@ extension MyAppsViewController
     }
 }
 
-@available(iOS 13.0, *)
 extension MyAppsViewController
 {
     private func actions(for installedApp: InstalledApp) -> [UIMenuElement]

AltStore/Operations/EnableJITOperation.swift

@@ -11,7 +11,6 @@ import Combine
 
 import AltStoreCore
 
-@available(iOS 14, *)
 protocol EnableJITContext
 {
     var server: Server? { get }
@@ -20,7 +19,6 @@ protocol EnableJITContext
     var error: Error? { get }
 }
 
-@available(iOS 14, *)
 class EnableJITOperation<Context: EnableJITContext>: ResultOperation<Void>
 {
     let context: Context

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 }
@@ -71,7 +70,6 @@ private struct OTAUpdate
     var archivePath: String
 }
 
-@available(iOS 14, *)
 class PatchAppOperation: ResultOperation<Void>
 {
     let context: PatchAppContext
@@ -148,7 +146,6 @@ 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
@@ -28,7 +27,6 @@ extension PatchViewController
     }
 }
 
-@available(iOS 14.0, *)
 class PatchViewController: UIViewController
 {
     var patchApp: AnyApp?
@@ -99,7 +97,6 @@ class PatchViewController: UIViewController
     }
 }
 
-@available(iOS 14.0, *)
 private extension PatchViewController
 {
     func update()
@@ -212,7 +209,6 @@ private extension PatchViewController
     }
 }
 
-@available(iOS 14.0, *)
 private extension PatchViewController
 {
     @IBAction func performButtonAction()
@@ -254,7 +250,6 @@ private extension PatchViewController
     }
 }
 
-@available(iOS 14.0, *)
 private extension PatchViewController
 {
     func startProcess()

AltStore/SceneDelegate.swift

@@ -9,7 +9,6 @@
 import UIKit
 import AltStoreCore
 
-@available(iOS 13, *)
 class SceneDelegate: UIResponder, UIWindowSceneDelegate
 {
     var window: UIWindow?
@@ -75,7 +74,6 @@ class SceneDelegate: UIResponder, UIWindowSceneDelegate
     }
 }
 
-@available(iOS 13.0, *)
 private extension SceneDelegate
 {
     func open(_ context: UIOpenURLContext)

AltStore/Settings/Error Log/ErrorLogTableViewCell.swift

@@ -11,7 +11,6 @@ import UIKit
 @objc(ErrorLogMenuButton)
 private class ErrorLogMenuButton: UIButton
 {
-    @available(iOS 14.0, *)
     override func menuAttachmentPoint(for configuration: UIContextMenuConfiguration) -> CGPoint
     {
         var point = super.menuAttachmentPoint(for: configuration)

AltStore/Settings/SettingsViewController.swift

@@ -320,7 +320,6 @@ private extension SettingsViewController
         }
     }
     
-    @available(iOS 14, *)
     @IBAction func addRefreshAppsShortcut()
     {
         guard let shortcut = INShortcut(intent: INInteraction.refreshAllApps().intent) else { return }

AltStore/Sources/SourcesViewController.swift

@@ -566,7 +566,6 @@ 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

@@ -408,7 +408,6 @@ private extension PatreonAPI
     }
 }
 
-@available(iOS 13.0, *)
 extension PatreonAPI: ASWebAuthenticationPresentationContextProviding
 {
     public func presentationAnchor(for session: ASWebAuthenticationSession) -> ASPresentationAnchor