Remove Previews

[bitwiseman]

Description

v2.x

Before submitting a PR:

• [ ] Changes must not break binary backwards compatibility. If you are unclear on how to make the change you think is needed while maintaining backward compatibility, CONTRIBUTING.md for details.
• [ ] Add JavaDocs and other comments explaining the behavior.
• [ ] When adding or updating methods that fetch entities, add @link JavaDoc entries to the relevant documentation on https://docs.github.com/en/rest .
• [ ] Add tests that cover any added or changed code. This generally requires capturing snapshot test data. See CONTRIBUTING.md for details.
• [ ] Run mvn -D enable-ci clean install site locally. If this command doesn't succeed, your change will not pass CI.
• [ ] Push your changes to a branch other than main. You will create your PR from that branch.

When creating a PR:

• [ ] Fill in the "Description" above with clear summary of the changes. This includes:
  • [ ] If this PR fixes one or more issues, include "Fixes #" lines for each issue.
  • [ ] Provide links to relevant documentation on https://docs.github.com/en/rest where possible. If not including links, explain why not.
• [ ] All lines of new code should be covered by tests as reported by code coverage. Any lines that are not covered must have PR comments explaining why they cannot be covered. For example, "Reaching this particular exception is hard and is not a particular common scenario."
• [ ] Enable "Allow edits from maintainers".

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 97.29730% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 80.66%. Comparing base (455fd41) to head (d9483cb). Report is 1 commits behind head on main-2.x.

Files	Patch %	Lines
...c/main/java/org/kohsuke/github/GHOrganization.java	50.00%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main-2.x #1827 +/- ## ============================================== + Coverage 80.02% 80.66% +0.64% + Complexity 2204 2192 -12 ============================================== Files 217 216 -1 Lines 6838 6620 -218 Branches 379 370 -9 ============================================== - Hits 5472 5340 -132 + Misses 1128 1043 -85 + Partials 238 237 -1 ```

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