I think we could remove some of them since their meaning is not changing or providing new or better information in RTL version. They are:

Yeah you are right @marcoscv-work, I agree.
As I said in #175 I made some icons that don't make sense to keep it, most of them caused by the rush to complete the icon set.
But the rules are clear, if the direction of the icons doesn't give additional context it's because RTL is not needed. For example, bullet-list and numbered-list should have an RTL version.
The direction of the wind is important 馃槄
Then can we create an issue to review and resolve this?
Probably those icons are not in use but we need to confirm it
Let's do it!

Can we just use this issue?
It makes sense to me, I think we need to create a new ticket to analyze the use of icons in DXP, and when we finish analyzing we will remove the icons from Clay
Checked, no uses of those icons in DXP:
https://issues.liferay.com/browse/LPS-132516
Thanks @marcoscv-work, so I think it's safe to remove it from Clay
This issue has been merged and will be released in DXP at https://issues.liferay.com/browse/LPS-130565
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Can we just use this issue?