That's a good question. Comparing the Softbank emoji from June 2008 [0] and the initial batch of Apple emoji that shipping in iPhone OS 2.2 (Nov 2008) [1], it doesn't look like there are any missing at all, it's a perfect 1:1 mapping.

0: https://emojipedia.org/softbank/2008

1: https://emojipedia.org/apple/iphone-os-2.2

Its kinda odd how a lot of the major tech companies have self censored emojis like they are some savior of the planet for doing so.

For example the gun emoji by turning it into a water pistol instead of a real looking firearm handgun lol.

WOW THEY SURE CAUSED COUNTLESS LIVES TO BE SAVED W THAT ONE SINGLE MOVE!

long eggplant and a smaller Pinching Hand emoji were probably the first to go