Remove some polyfills

This should reduce the runtime size & load times somewhat by removing polyfills for older browsers which are not used much

app/capabilities.js

@@ -45,13 +45,7 @@ async function checkCrypto() {
     );
     return true;
   } catch (err) {
-    try {
-      window.asmCrypto = await import('asmcrypto.js');
-      await import('@dannycoates/webcrypto-liner/build/shim');
-      return true;
-    } catch (e) {
-      return false;
-    }
+    return false;
   }
 }
 
@@ -66,25 +60,12 @@ function checkStreams() {
   }
 }
 
-async function polyfillStreams() {
-  try {
-    await import('@mattiasbuelens/web-streams-polyfill');
-    return true;
-  } catch (e) {
-    return false;
-  }
-}
-
 export default async function getCapabilities() {
   const browser = browserName();
   const isMobile = /mobi|android/i.test(navigator.userAgent);
   const serviceWorker = 'serviceWorker' in navigator && browser !== 'edge';
   let crypto = await checkCrypto();
   const nativeStreams = checkStreams();
-  let polyStreams = false;
-  if (!nativeStreams) {
-    polyStreams = await polyfillStreams();
-  }
   let account = typeof AUTH_CONFIG !== 'undefined';
   try {
     account = account && !!localStorage;
@@ -106,10 +87,10 @@ export default async function getCapabilities() {
     account,
     crypto,
     serviceWorker,
-    streamUpload: nativeStreams || polyStreams,
+    streamUpload: nativeStreams,
     streamDownload:
       nativeStreams && serviceWorker && browser !== 'safari' && !mobileFirefox,
-    multifile: nativeStreams || polyStreams,
+    multifile: nativeStreams,
     share,
     standalone
   };