Remove iOS 16 checks

Trio/Sources/Shortcuts/Bolus/BolusIntent.swift

@@ -3,7 +3,7 @@ import Foundation
 import Intents
 import Swinject
 
-@available(iOS 16.0,*) struct BolusIntent: AppIntent {
+struct BolusIntent: AppIntent {
     // Title of the action in the Shortcuts app
     static var title = LocalizedStringResource("Enact Bolus")
 

Trio/Sources/Shortcuts/Bolus/BolusIntentRequest.swift

@@ -2,7 +2,7 @@ import Combine
 import CoreData
 import Foundation
 
-@available(iOS 16.0,*) final class BolusIntentRequest: BaseIntentsRequest {
+final class BolusIntentRequest: BaseIntentsRequest {
     func bolus(_ bolusAmount: Double) async throws -> String {
         var bolusQuantity: Decimal = 0
         switch settingsManager.settings.bolusShortcut {

Trio/Sources/Shortcuts/Carbs/AddCarbPresetIntent.swift

@@ -3,7 +3,7 @@ import Foundation
 import Intents
 import Swinject
 
-@available(iOS 16.0,*) struct AddCarbPresetIntent: AppIntent {
+struct AddCarbPresetIntent: AppIntent {
     // Title of the action in the Shortcuts app
     static var title: LocalizedStringResource = "Add carbs"
 

Trio/Sources/Shortcuts/Carbs/CarbPresetIntentRequest.swift

@@ -1,7 +1,7 @@
 import CoreData
 import Foundation
 
-@available(iOS 16.0,*) final class CarbPresetIntentRequest: BaseIntentsRequest {
+final class CarbPresetIntentRequest: BaseIntentsRequest {
     func addCarbs(
         _ quantityCarbs: Double,
         _ quantityFat: Double,