Move the request credential function into one file

passKit/Models/GitCredential.swift

@@ -8,43 +8,6 @@
 
 import Foundation
 import ObjectiveGit
-import SVProgressHUD
-
-public func requestCredentialPassword(credential: GitCredential.Credential,
-                                      lastPassword: String?,
-                                      controller: UIViewController) -> String? {
-    let sem = DispatchSemaphore(value: 0)
-    var password: String?
-    let message: String = {
-        switch credential {
-        case .http:
-            return "FillInGitAccountPassword.".localize()
-        case .ssh:
-            return "FillInSshKeyPassphrase.".localize()
-        }
-    }()
-
-    DispatchQueue.main.async {
-        SVProgressHUD.dismiss()
-        let alert = UIAlertController(title: "Password".localize(), message: message, preferredStyle: .alert)
-        alert.addTextField() {
-            $0.text = lastPassword ?? ""
-            $0.isSecureTextEntry = true
-        }
-        alert.addAction(UIAlertAction(title: "Ok".localize(), style: .default) { _ in
-            password = alert.textFields?.first?.text
-            sem.signal()
-        })
-        alert.addAction(UIAlertAction(title: "Cancel".localize(), style: .cancel) { _ in
-            password = nil
-            sem.signal()
-        })
-        controller.present(alert, animated: true)
-    }
-
-    let _ = sem.wait(timeout: .distantFuture)
-    return password
-}
 
 public struct GitCredential {
     private var credential: Credential