remove player head drop in graves

src/graves/data/minecraft/loot_table/entities/player.json

@@ -1 +0,0 @@
-{"pools":[{"rolls":1,"entries":[{"type":"minecraft:loot_table","value":"graves:entities/player"}]},{"rolls":1,"entries":[{"type":"minecraft:loot_table","value":"player_heads:entities/player"}]}]}