remove unused functions

src/shared/utils/Encoding.ts

@@ -70,35 +70,6 @@ export function arrayBufferToBase64(arrayBuffer: ArrayBufferLike): string {
   return base64;
 }
 
-/**
- * From: https://developer.mozilla.org/en-US/docs/Web/API/WindowBase64/Base64_encoding_and_decoding
- */
-export function base64Encode(str) {
-  // first we use encodeURIComponent to get percent-encoded UTF-8,
-  // then we convert the percent encodings into raw bytes which
-  // can be fed into btoa.
-  return btoa(
-    encodeURIComponent(str).replace(
-      /%([0-9A-F]{2})/g,
-      function toSolidBytes(_match, p1) {
-        return String.fromCharCode(('0x' as any) + p1);
-      },
-    ),
-  );
-}
-
-export function base64Decode(str) {
-  // Going backwards: from bytestream, to percent-encoding, to original string.
-  return decodeURIComponent(
-    atob(str)
-      .split('')
-      .map(function (c) {
-        return '%' + ('00' + c.charCodeAt(0).toString(16)).slice(-2);
-      })
-      .join(''),
-  );
-}
-
 // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/encodeURIComponent#encoding_for_rfc3986
 export function encodeRFC3986URIComponent(str: string): string {
   return encodeURIComponent(str).replace(