remove consensus, extraneous parameter for update_view, repoint deps

[pls148]

Closes #3640

This PR:

This PR removes the consensus module (deprecated in favor of consensus2) and removes an extra parameter for update_view. Also removes references to the "dependency-tasks" feature.

This PR does not:

This does NOT rename the consensus2 module to consensus, nor change any other types. That will come in a later PR.

Key places to review:

[CLAassistant]

All committers have signed the CLA.

[bfish713]

This looks good. However I think now the CI is redundant. The ci jobs for test and test-dependency-tasks are running the same tests now I think. In a follow up can you confirm that the sets of tests are the same and remove one of them?

Future follow up is to pick out the now unused or misused types/functions and types in task-impl helpers (and other places)

[ss-es]

I think the feature also appears in a few Cargo.toml files, and should be removed from there

For CI, you can also just delete the block called test-dependency-tasks in .github/workflows/build-and-test.yml (keeping the regular tests, which now always run the dependency tasks)

[pls148]

I've added another commit which removes dependency-tasks from CI and Cargofiles, for the rest of the stuff I'm going to make a follow-up PR to avoid blocking 3738

[ss-es]

looks good to me!

I didn't look at the original PR in depth, but I think Brendon did so should be good to merge