Don't save player twice when shadowing (#2131)

Saving has side effects, such as removing enderpearls

src/main/java/carpet/patches/EntityPlayerMPFake.java

@@ -136,7 +136,6 @@ public class EntityPlayerMPFake extends ServerPlayer
 
     public static EntityPlayerMPFake createShadow(MinecraftServer server, ServerPlayer player)
     {
-        player.level().getServer().getPlayerList().remove(player);
         player.connection.disconnect(Component.translatable("multiplayer.disconnect.duplicate_login"));
         ServerLevel worldIn = player.level();//.getWorld(player.dimension);
         GameProfile gameprofile = player.getGameProfile();