JP-3695: Clean up unnecessary copies

[penaguerrero]

Partially Resolves JP-3695

Closes #

This PR addresses removing the unnecessary copies of all steps in the Detector1 pipeline. The same needs to be done for the stage2 pipelines.

Copies are made at the _step.py level, only if the step is not skipped.

Checklist for PR authors (skip items if you don't have permissions or they are not applicable)

• [x] added entry in CHANGES.rst within the relevant release section
• [x] updated or added relevant tests
• [x] updated relevant documentation
• [x] added relevant milestone
• [x] added relevant label(s)
• [x] ran regression tests, post a link to the Jenkins job below. How to run regression tests on a PR
• [ ] All comments are resolved
• [ ] Make sure the JIRA ticket is resolved properly

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 59.34066% with 148 lines in your changes missing coverage. Please review.

Project coverage is 61.83%. Comparing base (7683808) to head (a4741e8). Report is 2 commits behind head on master.

Files with missing lines	Patch %	Lines
jwst/persistence/persistence_step.py	2.04%	48 Missing :warning:
jwst/reset/reset_step.py	10.00%	18 Missing :warning:
jwst/rscd/rscd_step.py	5.55%	17 Missing :warning:
jwst/emicorr/emicorr_step.py	7.69%	12 Missing :warning:
jwst/rscd/rscd_sub.py	35.71%	9 Missing :warning:
jwst/ipc/ipc_corr.py	12.50%	7 Missing :warning:
jwst/ipc/ipc_step.py	25.00%	6 Missing :warning:
jwst/dark_current/dark_current_step.py	73.33%	4 Missing :warning:
jwst/refpix/refpix_step.py	73.33%	4 Missing :warning:
jwst/dq_init/dq_init_step.py	72.72%	3 Missing :warning:
... and 11 more

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #8676 +/- ## ========================================== + Coverage 61.81% 61.83% +0.01% ========================================== Files 377 377 Lines 38915 38905 -10 ========================================== + Hits 24056 24057 +1 + Misses 14859 14848 -11 ```

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[penaguerrero]

reg tests: https://plwishmaster.stsci.edu:8081/job/RT/job/JWST-Developers-Pull-Requests/1656/

[penaguerrero]

Some changes requested, and needs a changelog entry. We had talked about this in the meetings and had decided that no log entry was needed since it did not change the behavior for users. Thinking about it a bit more, I will go ahead and add a log entry, for tracking purposes.

[tapastro]

Some changes requested, and needs a changelog entry.

We had talked about this in the meetings and had decided that no log entry was needed since it did not change the behavior for users. Thinking about it a bit more, I will go ahead and add a log entry, for tracking purposes.

That's fine, you can mark it with the appropriate no-changelog tag then.

[tapastro]

Latest regtest run was clean: https://plwishmaster.stsci.edu:8081/job/RT/job/JWST-Developers-Pull-Requests/1741/

Merging!