Remove Support Ukraine banner from PyTorch3D website

Summary: Remove the Support Ukraine banner component and its usage from the PyTorch3D website homepage.

Reviewed By: bottler

Differential Revision: D96559642

fbshipit-source-id: fd716cde7145d5c0105b2d2fb569375395b9b5de

website/pages/en/index.js

@@ -74,20 +74,6 @@ class HomeSplash extends React.Component {
   }
 }
 
-function SocialBanner() {
-  return (
-    <div className="socialBanner">
-      <div>
-        Support Ukraine 🇺🇦{' '}
-        <a href="https://opensource.fb.com/support-ukraine">
-          Help Provide Humanitarian Aid to Ukraine
-        </a>
-        .
-      </div>
-    </div>
-  );
-}
-
 class Index extends React.Component {
   render() {
     const {config: siteConfig, language = ''} = this.props;
@@ -226,7 +212,6 @@ loss_chamfer, _ = chamfer_distance(sample_sphere, sample_test)
 
     return (
       <div>
-        <SocialBanner />
         <HomeSplash siteConfig={siteConfig} language={language} />
         <div className="landingPage mainContainer">
           <Features />