Remove unneeded protocol and methods on VectortHostingController

Riot/Modules/Common/SwiftUI/VectorHostingController.swift

@@ -27,21 +27,12 @@ class VectorHostingController: UIHostingController<AnyView> {
     // MARK: Private
     
     private var theme: Theme
-
-    init() {
-        self.theme = ThemeService.shared().theme
-        super.init(rootView: AnyView(EmptyView()))
-    }
     
     init<Content>(rootView: Content) where Content: View {
         self.theme = ThemeService.shared().theme
         super.init(rootView: AnyView(rootView.vectorContent()))
     }
     
-    func setRoot<V: View>(view: V) {
-        rootView = AnyView(view)
-    }
-    
     required init?(coder aDecoder: NSCoder) {
         fatalError("VectorHostingViewController does not currently support init from nibs")
     }