What if instead of permanently removing the spell from the game they became Glyphs we could choose to add to our spell book. With all of the spells being removed for the sake of reducing the button bloat It feels like many of our favorite spells are going down the drain just to narrow our skill set. Most of these spells have the same advantages as a vanity item anyway so why not make them an optional Major/minor glyph? Since many of these spells didn't work their way into an optimized rotation their utility as an optional glyph can finally be realized.
Here is a list of spells on the chopping block taken from Wowhead. This list includes only spells that have been removed entirely and not spells that have been restricted to a class specialization.
Death Knight
Blood Boil
Blood Parasites
Mark of Blood
Druid
Bear Hug
Symbiosis
Hibernate
Hunter
Pet Ability(Cower)
Eyes of the Beast
Mage
Flame Orb
Monk
Clash
Avert Harm
Healing Sphere
Spinning Fire Blossom
Paladin
Blinding Light
Holy Light
Hand of Salvation
Priest
Spirit Shell
Void Shift
Rogue
Disarm Trap
Redirect
Shadow Blades
Shaman
Earthquake
Bind Elemental
Totemic Recall
Water Shield
Warlock
Demonic Breath
Fel Flame
Metamorphosis: Void Ray
Metamorphosis: Carrion Swarm
Warrior
Beserker Stance
Cleave
Demoralizing Banner
Overpower
Throw