Revert "Merge branch 'master' of https://github.com/Chas-Fordyce/Math_Project"

This reverts commit 8c5f85d9c3fc284a154f7eb802992029698f8064, reversing
changes made to 63a4c6eb4bc92a6dbe64b97d9895cf0e17fb1ff0.

	deleted:    Math Project.gmx/objects/obj_arm.object.gmx
	modified:   Math Project.gmx/objects/obj_gun.object.gmx
	modified:   Math Project.gmx/objects/obj_player.object.gmx
	deleted:    Math Project.gmx/objects/obj_sword.object.gmx
	modified:   Math Project.gmx/rooms/rm_room.room.gmx
	modified:   Math Project.gmx/sound/snd_arrow_shoot.sound.gmx
	modified:   Math Project.gmx/sound/snd_footsteps.sound.gmx
	deleted:    Math Project.gmx/sprites/images/spr_arm_0.png#
	deleted:    Math Project.gmx/sprites/spr_arm.sprite.gmx
	deleted:    sword swing sound.wav