fix lint warnings

Signed-off-by: Marcel Hibbe <dev@mhibbe.de>

app/src/main/res/drawable/ic_mimetype_folder_public.xml

@@ -1,49 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~ Nextcloud Talk application
-  ~
-  ~ @author Mario Danic
-  ~ Copyright (C) 2017-2019 Mario Danic <mario@lovelyhq.com>
-  ~
-  ~ This program is free software: you can redistribute it and/or modify
-  ~ it under the terms of the GNU General Public License as published by
-  ~ the Free Software Foundation, either version 3 of the License, or
-  ~ at your option) any later version.
-  ~
-  ~ 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/>.
-  -->
-
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="16dp"
-    android:height="16dp"
-    android:viewportWidth="16"
-    android:viewportHeight="16">
-
-    <path
-        android:fillColor="#0082c9"
-        android:pathData="M1.5,2 C1.25,2,1,2.25,1,2.5 L1,13.5 C1,13.76,1.24,14,1.5,14 L14.5,14
-C14.76,14,15,13.759,15,13.5 L15,4.5 C15,4.25,14.75,4,14.5,4 L8,4 L6,2 L1.5,2 Z
-M9.834,5.5 C10.268,5.4981,10.7,5.6545,11.02,5.9746
-C11.66,6.6153,11.66,7.7166,11.02,8.3574 L10.17,9.207
-C10.197,8.7574,10.151,8.4573,9.8633,8.0508 L10.287,7.625
-C10.562,7.3498,10.539,6.9967,10.289,6.709
-C10.019,6.4391,9.645,6.4388,9.373,6.7109 L7.7266,8.3574
-C7.4437,8.6404,7.431,8.9797,7.7246,9.2734 L6.9941,10.006
-C6.7069,9.7186,6.5083,9.3329,6.4824,8.8984
-C6.4568,8.464,6.6281,7.9913,6.9941,7.625 L8.6406,5.9766
-C8.9651,5.6619,9.4004,5.5019,9.834,5.5 Z M9.0078,7.9902
-C9.296,8.2773,9.4947,8.6645,9.5195,9.0996
-C9.5449,9.5348,9.3746,10.006,9.0078,10.373 L7.3594,12.02
-C6.7198,12.659,5.6199,12.659,4.9805,12.02
-C4.3409,11.38,4.339,10.282,4.9805,9.6406 L5.8418,8.7773
-C5.8155,9.2266,5.8645,9.5278,6.1523,9.9336 L5.7129,10.373
-C5.4541,10.632,5.3887,10.963,5.7129,11.287
-C5.9567,11.531,6.2686,11.594,6.6289,11.287 L8.2754,9.6406
-C8.5401,9.3758,8.562,9.0075,8.2773,8.7227 L9.0078,7.9902 Z" />
-</vector>

app/src/main/res/layout/controller_call_menu.xml

@@ -1,33 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?><!--
-  ~ Nextcloud Talk application
-  ~
-  ~ @author Mario Danic
-  ~ Copyright (C) 2017 Mario Danic
-  ~
-  ~ This program is free software: you can redistribute it and/or modify
-  ~ it under the terms of the GNU General Public License as published by
-  ~ the Free Software Foundation, either version 3 of the License, or
-  ~ at your option) any later version.
-  ~
-  ~ 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/>.
-  -->
-
-<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:background="@color/bg_default">
-
-    <androidx.recyclerview.widget.RecyclerView
-        android:id="@+id/recycler_view"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-
-</RelativeLayout>

app/src/main/res/layout/controller_operations_menu.xml

@@ -21,8 +21,7 @@
 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:id="@+id/controller_operations_view"
     android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:background="@color/bg_default">
+    android:layout_height="wrap_content">
 
     <ImageView
         android:id="@+id/result_image_view"

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

@@ -165,8 +165,6 @@
     <string name="nc_profile_personal_info_title">Personal Info</string>
 
     <!-- Conversation menu -->
-    <string name="nc_start_conversation">Start a conversation</string>
-    <string name="nc_configure_room">Configure conversation</string>
     <string name="nc_leave">Leave conversation</string>
     <string name="nc_clear_history">Delete all messages</string>
     <string name="nc_clear_history_warning">Do you really want to delete all messages in this conversation?</string>
@@ -176,7 +174,6 @@
     <string name="nc_change_password">Change password</string>
     <string name="nc_clear_password">Clear password</string>
     <string name="nc_share_link">Share link</string>
-    <string name="nc_share_link_via">Share link via</string>
     <string name="nc_make_call_public">Make conversation public</string>
     <string name="nc_make_call_private">Make conversation private</string>
     <string name="nc_delete_call">Delete conversation</string>