Prevent inventory save from restoring static weapon backpacks
because players can use them to create new ones and thus trigger a BattlEye kick
(cherry picked from commit A3Wasteland/ArmA3_Wasteland.Altis@4bd2583010f05196435ac00bf9a31af097d3a817)
Improved cleanup of items dropped on death
(cherry picked from commit A3Wasteland/ArmA3_Wasteland.Altis@0ff8bb9ae2c3e7dbcbf6cc2149c80230c4427628)