I can see you're having trouble deciding what to cut. What exactly is the
game plan for this deck, in very specific terms? Laying out exactly what you want to do is a good way of seeing which cards are less relevant to the deck's plan, and therefore what to cut! At least, it is for me...
For example, if your plan is to go aggro, cut some of the high-cmc beaters like
Avacyn, Angel of Hope and
Aurelia, the Warleader. While definitely good cards, they really shouldn't be in the "aggro" category in your deck, especially since they will sit in your hand dead for half the game until you reach the mana necessary to actually play them. Cutting these will streamline your early-game draws and your path to victory!
Keep in mind that an aggro deck relies on a large board state that is cumulated over the course of a few turns to win, so loading your deck with board wipes is probably not the best idea. Your deck clearly wants to make tokens, so why are there 5 wipes in here?
Inferno makes sense, since you could swing in with everything then cast it at instant-speed with Iroas preventing the damage, but
Terminus does not. I would suggest removing one or two board wipes. By the same logic of you wanting to spam the board with tokens and
smash face in that way,
Angelic Exaltation seems like it will lack effect.
Also keep a lookout for cards that don't make enough of an impact on the board. Take
Lightning Helix, and compare it to
Boros Charm. It's ok value for the mana, but it requires one of each of your colors and can only remove a creature with 3 or less toughness. This won't be very useful anywhere past about turn 5, unless you're lucky.
Frontline Medic's ability is redundant with your commander, and Commander Esha is basically an unblockable 2/4 for 4 mana. Not that great.
Launch the Fleet is also a bit lackluster in this regard.
Tyrant of Discord is just... bad. It's a 7 mana 7/7 with a
possible etb removal trigger. The chances that the opponent chooses a land at random and you don't remove anything at all are way too high to run this, especially since you're looking to slim the mana curve.
Other cards that I would
consider cutting are:
I really hope that this helped you, and I feel you! You've got to be ruthless, cutting cards.
And just a couple suggestions, even though I know you're looking to cut:
Mind Stone. It's nice, aggressive ramp early-game and some handy dandy card draw later.
Anthems! A really great way to win while going wide is with a
Glorious Anthem or other similar effect. A 2/2 is a lot more effective than a 1/1, and if you throw in a couple anthems, your opponents will be quickly
overrun.
Best of luck with the deck!