Cards i dot think are needed here are:
Holy Light x2 (with x2 layonhands and x2guardians, do you rly need these?) Cosider switching with the absolute best 2mana minion, Argent protectors.
Mind Control Tech x1 (meh) Consider a Harvest golem or a scarlet crusader, for some better board presence.
Mogu'shan Warden x2 (very meh) What are you a priest? you already have x2 sunfurry protectors and 2 shieldmastaz, i greatly advise you switch the wardens for Yeti's, or even better azure drakes to improve your card draw and lessen your x8 4mana cards to x6.
Avenging Wrath x1 (1 is enough, 2 seems like a bit of an overkill, still if you really want it, its ok to keep it)
Guardian of Kings x1 (2 is fine also, but you already have many high cost cards, and if at some point you want to take out a card for something cheaper, this should probably be it.)
Lay on Hands x1 (1 is way more than enough, 2 is an overkill, can you really afford drawing x2layonhands early on? or ever.)
I hope you find this helpful, keep in mind, its nothing but my personal opinion.
As an addition to that i would advise you add at least 1 redemption somewhere in your deck. You wouldn't believe how amazing it is when coupled with Tirion, or Ragnaros, or Sylvanas.
I wouldnt drop the big game hunter, as its a strong 3mana card just as a 4/2minion, and its potential of taking out legendaries just for 3 mana makes it much stronger.
Edited by Creus on 4/1/2014 11:37 AM PDT