global: cleanup code style

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

ui/src/main/java/com/wireguard/android/fragment/AppListDialogFragment.kt

@@ -15,9 +15,9 @@ import androidx.fragment.app.Fragment
 import com.wireguard.android.Application
 import com.wireguard.android.R
 import com.wireguard.android.databinding.AppListDialogFragmentBinding
+import com.wireguard.android.databinding.ObservableKeyedArrayList
 import com.wireguard.android.model.ApplicationData
 import com.wireguard.android.util.ErrorMessages
-import com.wireguard.android.databinding.ObservableKeyedArrayList
 
 class AppListDialogFragment : DialogFragment() {
     private val appData: ObservableKeyedArrayList<String, ApplicationData> = ObservableKeyedArrayList()

ui/src/main/java/com/wireguard/android/fragment/TunnelEditorFragment.kt

@@ -4,7 +4,6 @@
  */
 package com.wireguard.android.fragment
 
-import android.app.Activity
 import android.content.Context
 import android.os.Bundle
 import android.text.InputType