Revert "replaced electrodes with insta hit taser beams."

This reverts commit 1a50dddbd45781eb0eb279a30cd93a51ec4a422d.

Conflicts:
	code/modules/projectiles/guns/energy/nuclear.dm
	code/modules/projectiles/guns/energy/pulse.dm
	code/modules/projectiles/guns/energy/stun.dm
	code/modules/projectiles/projectile/beams.dm