Merge #5818

5818: Remove Aoe4leg skin on request of Aoe r=Jupeyy a=def-

<!-- What is the motivation for the changes of this pull request -->

## Checklist

- [ ] Tested the change ingame
- [ ] Provided screenshots if it is a visual change
- [ ] Tested in combination with possibly related configuration options
- [ ] Written a unit test (especially base/) or added coverage to integration test
- [ ] Considered possible null pointers and out of bounds array indexing
- [ ] Changed no physics that affect existing maps
- [ ] Tested the change with [ASan+UBSan or valgrind's memcheck](https://github.com/ddnet/ddnet/#using-addresssanitizer--undefinedbehavioursanitizer-or-valgrinds-memcheck) (optional)


Co-authored-by: Dennis Felsing <dennis@felsin9.de>

CMakeLists.txt

@@ -1426,7 +1426,6 @@ set(EXPECTED_DATA
   shader/vulkan/text.vert
   shader/vulkan/tile.frag
   shader/vulkan/tile.vert
-  skins/Aoe4leg.png
   skins/PaladiN.png
   skins/antiantey.png
   skins/beast.png

data/skins/license.txt

@@ -39,9 +39,5 @@ wartee:
 Copyright Obst
 zlib license
 
-Aoe4legs:
-Copyright Aoe
-CC0 license
-
 All other skins:
 All content is released under CC-BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0/).