W3C validation warnings: type attribute

Hello,

After deactivating all plugins and switching to Twenty Seventeen theme, I can see an error repeated four times in W3C validator:

Error: Attribute href not allowed on element use at this point.

<use href="#icon-bars" xlink:href="#icon-bars">
<use href="#icon-close" xlink:href="#icon-close">
<use href="#icon-angle-down" xlink:href="#icon-angle-down">
<use href="#icon-arrow-right" xlink:href="#icon-arrow-right">

Has WordPress any plan to get rid of these warnings in order to follow W3C guidelines?

Please, if you don’t care about W3C warnings, do not reply to this post. Thank you.