PKI: Remove references to managed keys and enterprise no-ops functions

[Gabrielopesantos]

Description

This PR is a follow-up to #142, it removes the managed_key_util.go file from PKI, with no-ops enterprise functions and all of these functions.
Besides that, it also removes all references and usages of managed keys in the engine and SDK.

P.S: This PR has to be rebased once #142 is merged.

[cipherboy]

If you don't mind doing an interactive rebase, it'd be nice to drop both 46b9d99c7d5a261d81e9fead18c11947f4e24df9 and 4ef68b486f9828055a69c8af9407b21ca22af2ff, so we don't remove-and-re-add in the same PR since it won't be squashed. :-)

Otherwise I think this looks good, thanks @Gabrielopesantos!!

[Gabrielopesantos]

If you don't mind doing an interactive rebase, it'd be nice to drop both 46b9d99c7d5a261d81e9fead18c11947f4e24df9 and 4ef68b486f9828055a69c8af9407b21ca22af2ff, so we don't remove-and-re-add in the same PR since it won't be squashed. :-)

Otherwise I think this looks good, thanks @Gabrielopesantos!!

Sure, I couldn't find the objects (commits) you mentioned and rebased the branch with the main. Is that what you meant?

EDIT: I also see the "Check changelog" failing, as expected, is that already being enforced and do I need to add a changelog file to the PR?

[cipherboy]

@Gabrielopesantos Feel free to skip the CL, I'm considering this all part of the initial "fork" changeset. I don't have labeling permissions and Nathan has been ignoring it :-)

Sorry, not sure how I gave you such bogus commits lol. I meant the first and the last ones:

• a001bd5c3d6313a5c9567f8fed95d58a91dc5aa3 / Remove IsEnterprise references (modifies a single Transit file)
• 9b178ba8ea1e596c948ae21d22d87594cc38aa2a / Revert deleted import in transit test (undoes that modification).

[Gabrielopesantos]

@Gabrielopesantos Feel free to skip the CL, I'm considering this all part of the initial "fork" changeset. I don't have labeling permissions and Nathan has been ignoring it :-)

Sorry, not sure how I gave you such bogus commits lol. I meant the first and the last ones:

• a001bd5c3d6313a5c9567f8fed95d58a91dc5aa3 / Remove IsEnterprise references (modifies a single Transit file)
• 9b178ba8ea1e596c948ae21d22d87594cc38aa2a / Revert deleted import in transit test (undoes that modification).

I did not see that change was introduced in the first commit. Addressed. 👍

[cipherboy]

Thank you @Gabrielopesantos!! Looks good to me :-) Want to try unified CRLs next?

[naphelps]

@Gabrielopesantos As soon as you rebase this with updates, I will merge this one in. Thanks.