feat(remove): Temporally remove the internal miner functionality

[oxarbitrage]

Motivation

Close #8180

PR Author Checklist

Check before marking the PR as ready for review:

• Will the PR name make sense to users?
• Does the PR have a priority label?
• Have you added or updated tests?
• Is the documentation up to date?

Solution

• Removed the least amount of code to get rid of the custom equihash dependency.
• Commented the changes as TODOs in the code.
• Created issue to restore.
• Fixed config files needed to make the tests pass.

Review

Anyone can review, i marked as critical as we are in a merge freeze and it will not get merged otherwise.

Reviewer Checklist

Check before approving the PR:

• Does the PR scope match the ticket?
• Are there enough tests to make sure it works? Do the tests cover the PR motivation?
• Are all the PR blockers dealt with?
  PR blockers can be dealt with in new tickets or PRs.

And check the PR Author checklist is complete.

Follow Up Work

Create a hotfix including this removal of feature in the changelog. #8181

[arya2]

This looks good, I think we should skip adding the test config until we resolve this TODO if config_tests passes without it.

[oxarbitrage]

test config changes were done because config test were NOT passing without them.

[oxarbitrage]

Images were not build at CI. restarting all tests. https://github.com/ZcashFoundation/zebra/actions/runs/7625326629/job/20769382593?pr=8184#step:44:2

[oxarbitrage]

This looks good, I think we should skip adding the test config until we resolve this TODO if config_tests passes without it.

You are right, there are more removals needed to make the tests pass with different feature combinations. I pushed a commit to check against CI (094e3fe)