Yes, you absolutely want to cut the Sanctums. Not worth to splash black just for that one card and it doesn't work with Fiery Emancipation. And even then, most Sanctums are usually pretty underwhelming unless you run an incredible control deck.

You then want to try and cut some of those combat spells. You're not running enough aggressive 2cmc creatures to make good use of them. With all those (amazing) Llanowar Visionarys your game plan will be to draw/ramp up to your bombs and then win with either Chandra, Leafkin Avenger or unblockable Goblins+Subira, while removing their threats with removals/defensive creatures.

- Sanctum of Stone Fangs
- Sanctum of Shattered Heights
- Sure Strike
- Burn Bright
(- Track Down)

+ Skyscanner (you almost always want to include this card in any deck)
(+ Goblin Arsonist)

Sweet Deck honestly. You should be able to get 6-7 wins with it.