Minor icon cleanup

app/src/main/res/raw/keep.xml

-<?xml version="1.0" encoding="utf-8"?><!--
-  Quasseldroid - Quassel client for Android
-
-  Copyright (c) 2018 Janne Koschinski
-  Copyright (c) 2018 The Quassel Project
-
-  This program is free software: you can redistribute it and/or modify it
-  under the terms of the GNU General Public License version 3 as published
-  by the Free Software Foundation.
-
-  This program is distributed in the hope that it will be useful,
-  but WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-  GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License along
-  with this program.  If not, see <http://www.gnu.org/licenses/>.
-  -->
-
-<resources xmlns:tools="http://schemas.android.com/tools"
-  tools:discard=""
-  tools:keep="@mipmap/ic_launcher,@drawable/ic_shortcut_channel,@drawable/ic_shortcut_query" />

app/src/main/res/values/mipmap.xml

+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+  <item name="ic_launcher" type="mipmap">@mipmap/ic_launcher_legacy</item>
+</resources>

persistence/build.gradle.kts

@@ -17,25 +17,6 @@
  * with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-/*
- * Quasseldroid - Quassel client for Android
- *
- * Copyright (c) 2018 Janne Koschinski
- * Copyright (c) 2018 The Quassel Project
- *
- * This program is free software: you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 3 as published
- * by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
 plugins {
   id("com.android.library")
   kotlin("android")