Utilize default settings values

pass/AppDelegate.swift

@@ -34,10 +34,6 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
                 self.perform(#selector(postSearchNotification), with: nil, afterDelay: 0.4)
             }
         }
-
-        // Assign default values to global settings.
-        SharedDefaults.register(defaults: [DefaultsKeys.gitBranchName._key: "master"])
-
         return true
     }