Settings activity imports cleanup.

src/org/thoughtcrime/securesms/loki/activities/SettingsActivity.kt

@@ -5,16 +5,17 @@ import android.content.ClipData
 import android.content.ClipboardManager
 import android.content.Context
 import android.content.Intent
-import android.content.res.Configuration
 import android.net.Uri
-import android.os.*
+import android.os.AsyncTask
+import android.os.Bundle
+import android.os.Handler
+import android.os.Looper
 import android.view.ActionMode
 import android.view.Menu
 import android.view.MenuItem
 import android.view.View
 import android.view.inputmethod.InputMethodManager
 import android.widget.Toast
-import androidx.appcompat.app.AppCompatDelegate
 import kotlinx.android.synthetic.main.activity_settings.*
 import network.loki.messenger.BuildConfig
 import network.loki.messenger.R