RV runtime fix

runtime error: Cannot read null.loc
proc name: Remote View (/mob/GM/verb/Remote_View)
source file: Spells.dm,2047
usr: <Banana><font color=#FF3B83><b... (/mob/Player)
src: <Banana><font color=#FF3B83><b... (/mob/Player)
call stack:
<Banana><font color=#FF3B83><b... (/mob/Player): Remote View(Odd Troll
King (/mob/NPC/Enemies/Summoned))