remove unused file

Signed-off-by: tobiasKaminsky <tobias@kaminsky.me>

src/main/res/drawable/ic_folder_black_24dp.xml

@@ -1,5 +0,0 @@
-<vector android:height="24dp" android:tint="#333333"
-    android:viewportHeight="24.0" android:viewportWidth="24.0"
-    android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
-    <path android:fillColor="#FF000000" android:pathData="M10,4H4c-1.1,0 -1.99,0.9 -1.99,2L2,18c0,1.1 0.9,2 2,2h16c1.1,0 2,-0.9 2,-2V8c0,-1.1 -0.9,-2 -2,-2h-8l-2,-2z"/>
-</vector>