chore: delete unused cmake patch logic

[jharlow-intel]

• Have you provided a meaningful PR description?
• Have you added a test, reproducer or referred to an issue with a reproducer?
• Have you tested your changes locally for CPU and GPU devices?
• Have you made sure that new changes do not introduce compiler warnings?
• Have you checked performance impact of proposed changes?
• Have you added documentation for your changes, if necessary?
• Have you added your changes to the changelog?
• If this PR is a work in progress, are you opening the PR as a draft?

This is a 2 year old patch that no longer needs to be here, we're well onto 4.x cmake versions that work fine

[github-actions]

Deleted rendered PR docs from intelpython.github.com/dpctl, latest should be updated shortly. 🤞

[github-actions]

Array API standard conformance tests for dpctl=0.21.0rc0=py310h93fe807_11 ran successfully.
Passed: 1114
Failed: 7
Skipped: 119

[coveralls]

coverage: 85.264%. remained the same
when pulling 3a18c02 on chore/delete-cmake-patch
into 55546cf on master.

[ndgrigorian]

LGTM!