[Issue] Clean unneccesary prefix flexbox

[m2-assistant]

This issue is automatically created based on existing pull request: #30923: Clean unneccesary prefix flexbox

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Description (*)

Magento now support IE 11+ (mgt2.3) and major browsers update support flexbox so i think it's time for clear prefix flexbox
Only clear prefix and keep name mixins for maintain compatible

2.3.x browser support
2.4.x browser support

Related Pull Requests

Fixed Issues (if relevant)

1. Fixes magento/magento2#<issue_number>

Manual testing scenarios (*)

1. ...
2. ...

Questions or comments

Contribution checklist (*)

• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages
• All new or changed code is covered with unit/integration tests (if applicable)
• All automated tests passed successfully (all builds are green)

[engcom-Dash]

Hi @mrtuvn

Thanks for reporting and collaboration.

Can you please add detailed steps to reproduce

Thanks.

[engcom-Bravo]

Hi @mrtuvn,

We have noticed that this issue has not been updated since long time.
Hence we assume that this issue is fixed now, so we are closing it. Please feel to raise a fresh ticket or reopen this ticket if you need more assistance on this.

Thanks.