[website] RIDI gold sponsorship end (#37517)

README.md

@@ -139,7 +139,6 @@ via [OpenCollective](https://opencollective.com/mui) or via [Patreon](https://ww
   <a href="https://goread.io/?utm_source=MUI&utm_medium=referral&utm_content=readme" rel="noopener sponsored" target="_blank"><img height="96" width="96" src="https://images.opencollective.com/goread_io/eb6337d/logo/192.png" alt="goread.io" title="Instagram followers, likes, power likes, views, comments, saves in minutes." loading="lazy" /></a>
   <a href="https://icons8.com?utm_source=MUI&utm_medium=referral&utm_content=readme" rel="noopener sponsored" target="_blank"><img height="96" width="96" src="https://images.opencollective.com/icons8/7fa1641/logo/192.png" alt="Icons8" title="We provide the neat icons, photos, illustrations, and music. Developers, use our API to insert all the content we have into your apps." loading="lazy"></a>
   <a href="https://ipinfo.ai?utm_source=MUI&utm_medium=referral&utm_content=readme" rel="noopener sponsored" target="_blank"><img height="96" width="96" src="https://images.opencollective.com/ipinfoai/04f41d5/logo/192.png" alt="ipinfo.ai" title="We offer various IP data API services, including IP Geolocation Data, ASN Data, Company Data, IP Ranges Data, Abuse Contacts Data, Anonymous Browsing Detection, etc." loading="lazy"></a>
-  <a href="https://ridicorp.com?utm_source=MUI&utm_medium=referral&utm_content=readme" rel="noopener sponsored" target="_blank"><img height="96" width="96" src="https://images.opencollective.com/ridi-corporation/175dcf3/logo/192.png" alt="RIDI" title="RIDI is a South Korean digital content platform that offers webcomics, webnovels, animations, eBooks, and more." loading="lazy"></a>
 </p>
 
 Gold Sponsors are those who have pledged \$500/month or more to MUI.

docs/data/material/discover-more/backers/backers.md

@@ -32,7 +32,6 @@ via [OpenCollective](https://opencollective.com/mui) or via [Patreon](https://ww
   <a data-ga-event-category="sponsor" data-ga-event-action="logo" data-ga-event-label="dialmycalls" href="https://www.dialmycalls.com/?utm_source=MUI&utm_medium=referral&utm_content=backers" rel="noopener sponsored" target="_blank" style="margin-right: 16px;"><img height="96" width="96" src="https://images.opencollective.com/dialmycalls/f5ae9ab/avatar/96.png" srcset="https://images.opencollective.com/dialmycalls/f5ae9ab/avatar/192.png 2x" alt="dialmycalls.com" title="Send text messages, calls & emails to thousands with ease." loading="lazy" /></a>
   <a data-ga-event-category="sponsor" data-ga-event-action="logo" data-ga-event-label="goread.io" href="https://goread.io/?utm_source=MUI&utm_medium=referral&utm_content=backers" rel="noopener sponsored" target="_blank" style="margin-right: 16px;"><img height="96" width="96" src="https://images.opencollective.com/goread_io/eb6337d/logo/96.png" srcset="https://images.opencollective.com/goread_io/eb6337d/logo/192.png 2x" alt="goread.io" title="Instagram followers, likes, power likes, views, comments, saves in minutes." loading="lazy" /></a>
   <a data-ga-event-category="sponsor" data-ga-event-action="logo" data-ga-event-label="icons8.com" href="https://icons8.com?utm_source=MUI&utm_medium=referral&utm_content=backers" rel="noopener sponsored" target="_blank" style="margin-right: 16px;"><img height="96" width="96" src="https://images.opencollective.com/icons8/7fa1641/logo/96.png" srcset="https://images.opencollective.com/icons8/7fa1641/logo/192.png 2x" alt="Icons8" title="We provide the neat icons, photos, illustrations, and music. Developers, use our API to insert all the content we have into your apps." loading="lazy"></a>
-  <a data-ga-event-category="sponsor" data-ga-event-action="logo" data-ga-event-label="ridicorp.com" href="https://ridicorp.com?utm_source=MUI&utm_medium=referral&utm_content=backers" rel="noopener sponsored" target="_blank" style="margin-right: 16px;"><img height="96" width="96" src="https://images.opencollective.com/ridi-corporation/175dcf3/logo/96.png" srcset="https://images.opencollective.com/ridi-corporation/175dcf3/logo/192.png 2x" alt="RIDI" title="RIDI is a South Korean digital content platform that offers webcomics, webnovels, animations, eBooks, and more." loading="lazy"></a>
 </p>
 
 Gold Sponsors are those who have pledged \$500/month or more to MUI.

docs/src/components/home/GoldSponsors.tsx

@@ -60,13 +60,6 @@ const GOLDs = [
     description: 'Icons, illustrations, design tools, and more.',
     href: 'https://icons8.com?utm_source=MUI&utm_medium=referral&utm_content=homepage',
   },
-  {
-    src: 'https://images.opencollective.com/ridi-corporation/175dcf3/logo/40.png',
-    srcSet: 'https://images.opencollective.com/ridi-corporation/175dcf3/logo/80.png 2x',
-    name: 'RIDI',
-    description: 'Digital content platform for webcomics and more.',
-    href: 'https://ridicorp.com?utm_source=MUI&utm_medium=referral&utm_content=homepage',
-  },
 ];
 
 export default function GoldSponsors() {