ts: Remove SPL coders from Anchor package

[acheroncrypto]

Follow up on #2143, coders in Anchor package is no longer necessary. This is a breaking change, codebases that rely on SPL from Anchor package would need to migrate to the new packages and only import as needed.

[vercel[bot]]

@acheroncrypto is attempting to deploy a commit to the coral-xyz Team on Vercel.

A member of the Team first needs to authorize it.

[Henry-E]

Not if sure @tomlinton or @callensm is best to check this out

[callensm]

it's my understanding that the spl coders here are mildly broken anyway, so i wouldn't care if they were removed in favor of the official spl packages that have their own encoding/decoding, but would almost certain be a breaking change for many.

[Henry-E]

Cool, thanks for that. A breaking change doesn't sound great for sure. Might be a close then unfortunately.

[callensm]

Cool, thanks for that. A breaking change doesn't sound great for sure. Might be a close then unfortunately.

i'd still consider merging once we get more input of the usability of these coders. if the impact is minimal might be worth getting rid of the bloat /shrug

[acheroncrypto]

Cool, thanks for that. A breaking change doesn't sound great for sure. Might be a close then unfortunately.

We had a talk about this with @armaniferrante and his input was to completely remove them and allow people to import as needed.

[callensm]

ok, just verified. we're good to merge this once conflicts are resolved.

I was misunderstanding what was actually being proposed for removal.

[Henry-E]

Great, @acheroncrypto if you wouldn't mind to fix the merge conflicts when you get a chance and will try merge ASAP!

[acheroncrypto]

Fixed the conflicts, only zero-copy test seems to fail and it's not related to this PR.

[Henry-E]

@acheroncrypto are you happy with merging or any last bits you want to add?

Ha, you posted literal seconds before I did. Will merge so