Code effeciency project: handle_virus_something() (human and monkey /Life())

2 for loops is more expensive then what we're doing here.
Also we check to see if virus2 is populated before starting a for loop

Conflicts:
	code/modules/mob/living/carbon/human/life.dm
	code/modules/mob/living/carbon/monkey/life.dm

code/modules/mob/living/carbon/human/life.dm

@@ -1601,7 +1601,6 @@
 			// check if we're immune
 			if(V.antigen & src.antibodies)
 				V.dead = 1
-
 		return
 
 	proc/handle_stomach()

code/modules/mob/living/carbon/monkey/life.dm

@@ -214,7 +214,6 @@
 			// check if we're immune
 			if(V.antigen & src.antibodies)
 				V.dead = 1
-
 		return
 
 	proc/breathe()