Remove redundant abstract tags from DocBlocks

[marian1]

A number of methods of WP_Image_Editor include an @abstract tag in their DocBlocks, even though it is already declared in the function signature. These tags are redundant and add no new information.

I propose removing these tags to reduce redundancy.

This patch removes @abstract tags from DocBlocks when it is already defined in the method declaration. In such cases, the tags are redundant and do not provide additional value.

Trac ticket: https://core.trac.wordpress.org/ticket/63356

Thanks for the patch @IanDelMar this looks good to me.

@IanDelMar Nice fix. ✅ Looks good to me. Great work.

[SergeyBiryukov]

In 60198:

Docs: Remove redundant @abstract tags from DocBlocks in WP_Image_Editor.

Since the affected methods are already marked as abstract in the function signature, these tags are unnecessary and add no new information.

Follow-up to [22094], [22510], [22619].

Props marian1, narenin, ankitmaru.
Fixes #63356.