Drop iOS 14 and macOS 11 support

Vendor/RefreshControl/RefreshControlModifier.swift

@@ -1,46 +0,0 @@
-//
-//  RefreshControlModifier.swift
-//  SwiftUI_Pull_to_Refresh
-//
-//  Created by Geri Borbás on 18/09/2021.
-//
-
-import Foundation
-import SwiftUI
-
-struct RefreshControlModifier: ViewModifier {
-    @State private var geometryReaderFrame: CGRect = .zero
-    let refreshControl: RefreshControl
-
-    internal init(onValueChanged: @escaping (UIRefreshControl) -> Void) {
-        refreshControl = RefreshControl(onValueChanged: onValueChanged)
-    }
-
-    func body(content: Content) -> some View {
-        if #available(iOS 15.0, macOS 12.0, tvOS 15.0, *) {
-            return content
-        } else {
-            return content
-                .background(
-                    GeometryReader { geometry in
-                        ScrollViewMatcher(
-                            onResolve: { scrollView in
-                                refreshControl.add(to: scrollView)
-                            },
-                            geometryReaderFrame: $geometryReaderFrame
-                        )
-                        .preference(key: FramePreferenceKey.self, value: geometry.frame(in: .global))
-                        .onPreferenceChange(FramePreferenceKey.self) { frame in
-                            self.geometryReaderFrame = frame
-                        }
-                    }
-                )
-        }
-    }
-}
-
-extension View {
-    func refreshControl(onValueChanged: @escaping (_ refreshControl: UIRefreshControl) -> Void) -> some View {
-        modifier(RefreshControlModifier(onValueChanged: onValueChanged))
-    }
-}