remove unused strong capture

Signal/src/call/OutboundCallInitiator.swift

@@ -19,13 +19,11 @@ import SignalMessaging
 
     // MARK: - Dependencies
 
-    private var contactsManager : OWSContactsManager
-    {
+    private var contactsManager: OWSContactsManager {
         return Environment.shared.contactsManager
     }
 
-    private var contactsUpdater : ContactsUpdater
-    {
+    private var contactsUpdater: ContactsUpdater {
         return SSKEnvironment.shared.contactsUpdater
     }
 
@@ -48,7 +46,9 @@ import SignalMessaging
     /**
      * |recipientId| is a e164 formatted phone number.
      */
-    @discardableResult @objc public func initiateCall(recipientId: String,
+    @discardableResult
+    @objc
+    public func initiateCall(recipientId: String,
         isVideo: Bool) -> Bool {
         guard let callUIAdapter = AppEnvironment.shared.callService.callUIAdapter else {
             owsFailDebug("missing callUIAdapter")
@@ -71,17 +71,7 @@ import SignalMessaging
             return false
         }
 
-        // Check for microphone permissions
-        // Alternative way without prompting for permissions:
-        // if AVAudioSession.sharedInstance().recordPermission() == .denied {
-        frontmostViewController.ows_ask(forMicrophonePermissions: { [weak self] granted in
-            // Success callback; camera permissions are granted.
-
-            guard let strongSelf = self else {
-                return
-            }
-
-            // Here the permissions are either granted or denied
+        frontmostViewController.ows_ask(forMicrophonePermissions: { granted in
             guard granted == true else {
                 Logger.warn("aborting due to missing microphone permissions.")
                 OWSAlerts.showNoMicrophonePermissionAlert()