Remove Sharepoint auto generated HTML line to pass WCAG Web standard

Hi, sharepoint 2013 is automatically generating the following code in the HTML page, and we would like to remove it or disable it. as it is not complying with the WCAG standard. as I understand this is used by sharepoint to prefetch the images to reduce the loading time. and it is related to the Design Manager Code Snippet as per research.

<div style="display:none" id="imgPrefetch">< img src="/_layouts/15/images/spcommon.png?rev=23" />< img src="/_layouts/15/images/spcommon.png?rev=23" />< img src="/PublishingImages/logo.png?rev=23" />< /div>

Thank you in advance for the help.