Remove closure hooked to `render_block` within `enqueue_block_styles_assets()`

[desrosj]

Follow up to #54323.

The core standard is to avoid using anonymous functions for filter and action hook callbacks. One was added in [51471], but it should be converted to a normal function.

[jrf]

If it helps, I can do a scan of the complete src to check if any others may have slipped in.

[SergeyBiryukov]

Replying to jrf:

If it helps, I can do a scan of the complete src to check if any others may have slipped in.

Yes, please! As noted in comment:8:ticket:54323, there are at least two other instances added in [51902].

[jrf]

Replying to SergeyBiryukov:

Replying to jrf:

If it helps, I can do a scan of the complete src to check if any others may have slipped in.

Yes, please! As noted in comment:8:ticket:54323, there are at least two other instances added in [51902].

Here you go (scanned with a draft/unfinished sniff I have locally, but which isn't in WPCS yet):

FILE: src\wp-admin\edit-form-blocks.php
--------------------------------------------------------------------------------
FOUND 1 ERROR AFFECTING 1 LINE
--------------------------------------------------------------------------------
 34 | ERROR | Using a closure as the callback for add_filter() is forbidden as
    |       | unhooking it is nearly impossible (at this time - see trac ticket
    |       | 46635)
--------------------------------------------------------------------------------


FILE: src\wp-admin\includes\class-wp-upgrader.php
--------------------------------------------------------------------------------
FOUND 3 ERRORS AFFECTING 3 LINES
--------------------------------------------------------------------------------
  854 | ERROR | Using a closure as the callback for add_action() is forbidden
      |       | as unhooking it is nearly impossible (at this time - see trac
      |       | ticket 46635)
  876 | ERROR | Using a closure as the callback for add_action() is forbidden
      |       | as unhooking it is nearly impossible (at this time - see trac
      |       | ticket 46635)
 1135 | ERROR | Using a closure as the callback for add_action() is forbidden
      |       | as unhooking it is nearly impossible (at this time - see trac
      |       | ticket 46635)
--------------------------------------------------------------------------------


FILE: src\wp-admin\options-privacy.php
--------------------------------------------------------------------------------
FOUND 1 ERROR AFFECTING 1 LINE
--------------------------------------------------------------------------------
 23 | ERROR | Using a closure as the callback for add_filter() is forbidden as
    |       | unhooking it is nearly impossible (at this time - see trac ticket
    |       | 46635)
--------------------------------------------------------------------------------


FILE: src\wp-admin\privacy-policy-guide.php
--------------------------------------------------------------------------------
FOUND 1 ERROR AFFECTING 1 LINE
--------------------------------------------------------------------------------
 22 | ERROR | Using a closure as the callback for add_filter() is forbidden as
    |       | unhooking it is nearly impossible (at this time - see trac ticket
    |       | 46635)
--------------------------------------------------------------------------------


FILE: src\wp-includes\script-loader.php
--------------------------------------------------------------------------------
FOUND 1 ERROR AFFECTING 1 LINE
--------------------------------------------------------------------------------
 2469 | ERROR | Using a closure as the callback for add_filter() is forbidden
      |       | as unhooking it is nearly impossible (at this time - see trac
      |       | ticket 46635)
--------------------------------------------------------------------------------


FILE: src\wp-includes\sitemaps\class-wp-sitemaps-renderer.php
--------------------------------------------------------------------------------
FOUND 1 ERROR AFFECTING 1 LINE
--------------------------------------------------------------------------------
 256 | ERROR | Using a closure as the callback for add_filter() is forbidden as
     |       | unhooking it is nearly impossible (at this time - see trac
     |       | ticket 46635)
--------------------------------------------------------------------------------

[hellofromTonya]

#54028 was previously opened for using closure as a callback to the Hooks API. Closing this ticket as duplicate to move the effort to one ticket.