Remove unneeded extension and finish renaming

Author: ncooke3

FirebaseAuth/Tests/SampleSwift/AuthenticationExample/CustomViews/LoginView.swift

@@ -12,13 +12,11 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// TODO(ncooke3): Change name of this file.
-
 import SwiftUI
 
 import FirebaseAuth
 
-struct LoginViewSwiftUI: View {
+struct LoginView: View {
   @Environment(\.dismiss) private var dismiss
   @State private var multiFactorResolver: MultiFactorResolver? = nil
   @State private var onetimePasscode = ""
@@ -158,7 +156,7 @@ private struct SymbolTextField: TextFieldStyle {
       configuration
         .padding([.vertical, .trailing])
     }
-    .background(Color.color(uiColor: .secondarySystemBackground))
+    .background(Color(uiColor: .secondarySystemBackground))
     .cornerRadius(14)
     .textInputAutocapitalization(.never)
   }
@@ -188,5 +186,5 @@ private struct LoginViewButton: View {
 }
 
 #Preview {
-  LoginViewSwiftUI()
+  LoginView()
 }

FirebaseAuth/Tests/SampleSwift/AuthenticationExample/Utility/Extensions.swift

@@ -16,28 +16,6 @@ import FirebaseAuth
 import SwiftUI
 import UIKit
 
-// MARK: - Compat. API for converting `UIColor` to `Color`
-
-extension Color {
-  static func color(uiColor: UIColor) -> Self {
-    if #available(iOS 15.0, *) {
-      return Self(uiColor: uiColor)
-    } else {
-      var r: CGFloat = 0
-      var g: CGFloat = 0
-      var b: CGFloat = 0
-      var a: CGFloat = 0
-      uiColor.getRed(&r, green: &g, blue: &b, alpha: &a)
-      return Self(
-        red: Double(r),
-        green: Double(g),
-        blue: Double(b),
-        opacity: Double(a)
-      )
-    }
-  }
-}
-
 // MARK: - Extending a `Firebase User` to conform to `DataSourceProvidable`
 
 extension User: DataSourceProvidable {

FirebaseAuth/Tests/SampleSwift/AuthenticationExample/ViewControllers/AuthViewController.swift

@@ -340,7 +340,7 @@ class AuthViewController: UIViewController, DataSourceProviderDelegate {
   }
 
   private func performDemoEmailPasswordLoginFlow() {
-    let loginView = LoginViewSwiftUI()
+    let loginView = LoginView()
     let hostingController = UIHostingController(rootView: loginView)
     navigationController?.pushViewController(hostingController, animated: true)
   }