Merge #4959

4959: Revert "CGameClient::LoadMapSettings: Load the default tuning params … r=heinrich5991 a=def-

…by default"

This reverts commit 754562ce0b.

This breaks rendering for ddnet mode, thanks to cheeser0613 for report

`@Kaffeine` I'd prefer to have it working with DDNet instead of vanilla. A fix that doesn't break DDNet demos would be welcome.

## 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 if it works standalone, system.c especially
- [ ] 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>

src/game/client/gameclient.cpp

@@ -3034,6 +3034,11 @@ void CGameClient::LoadMapSettings()
 	for(int i = 0; i < NUM_TUNEZONES; i++)
 	{
 		TuningList()[i] = TuningParams;
+		TuningList()[i].Set("gun_curvature", 0);
+		TuningList()[i].Set("gun_speed", 1400);
+		TuningList()[i].Set("shotgun_curvature", 0);
+		TuningList()[i].Set("shotgun_speed", 500);
+		TuningList()[i].Set("shotgun_speeddiff", 0);
 	}
 
 	// Load map tunings