Periphery cleanup (#5893)

UITests/Sources/Application.swift

@@ -111,15 +111,3 @@ extension XCUIApplication {
         Locale.current.language.region?.identifier ?? ""
     }
 }
-
-private extension UIImage {
-    /// Adjusts the image by cropping it with the given edge insets.
-    func inset(by insets: UIEdgeInsets) -> UIImage {
-        let insetRect = CGRect(origin: .zero, size: size).inset(by: insets)
-        let renderer = UIGraphicsImageRenderer(size: insetRect.size)
-        
-        return renderer.image { _ in
-            draw(at: CGPoint(x: -insets.left, y: -insets.top))
-        }
-    }
-}