ts: remove duplicate functions

[Aursen]

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[vercel]

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[Henry-E]

So a bunch of these functions now exist on web3 but didn't exist there before?

[Henry-E]

i guess the question is

• is the behavior still going to be the same for all of these functions in web3
• is it a breaking change for anyone
• is there anywhere else that the way these functions are being called needs to change?

1: I mean you're just deleting them so it will be up to anyone handling the migration to the web3 versions, if they use any different set of inputs?
2: ok, i see you've listed it as a breaking change in the changelog,

• Maybe also note in the changelog that these functions are now available via the web3 library and that associated_address is now synchronous

3: I think that just deleting the functions + using typescript should have been enough to raise any compile errors if the functions were being used.