Add a feature flag for spaces. (#4429)

* Remove the huge conditional compilation block on AppSettings.

It is still required for the ElementCallBaseURL however.

* Add a feature flag for spaces.

ElementX/Sources/Other/AppAppearance.swift

@@ -1,26 +0,0 @@
-//
-// Copyright 2023, 2024 New Vector Ltd.
-//
-// SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
-// Please see LICENSE files in the repository root for full details.
-//
-
-import SwiftUI
-
-/// Used to specify the user's app specific appearance preference
-enum AppAppearance: CaseIterable, Codable {
-    case system
-    case dark
-    case light
-        
-    var interfaceStyle: UIUserInterfaceStyle {
-        switch self {
-        case .light:
-            return .light
-        case .dark:
-            return .dark
-        case .system:
-            return .unspecified
-        }
-    }
-}

ElementX/Sources/Other/MapLibre/MapURLs.swift

@@ -7,23 +7,6 @@
 
 import CoreLocation
 
-/// All of the configuration necessary to use MapTiler maps.
-///
-/// The style IDs need to be generated with the account that the API key belongs to. For more information read
-/// [FORKING.md](https://github.com/element-hq/element-x-ios/blob/develop/docs/FORKING.md#setup-the-location-sharing)
-struct MapTilerConfiguration {
-    let baseURL: URL
-    /// The API key for fetching map tiles. When not set, location sharing will be disabled and
-    /// any received locations will be shown in the timeline with a generic blurred map image.
-    let apiKey: String?
-    /// A MapLibre style ID for a light-mode map.
-    let lightStyleID: String
-    /// A MapLibre style ID for a dark-mode map.
-    let darkStyleID: String
-    
-    var isEnabled: Bool { apiKey != nil }
-}
-
 extension MapTilerConfiguration: MapTilerURLBuilderProtocol {
     func dynamicMapURL(for style: MapTilerStyle) -> URL? {
         var url = makeNewURL(for: style)