Remove Sourcify integration method: local snapshot

src/SourcifyMenu.tsx

@@ -30,14 +30,6 @@ const SourcifyMenu: React.FC = () => {
           >
             Sourcify Servers
           </SourcifyMenuItem>
-          <SourcifyMenuItem
-            checked={sourcifySource === SourcifySource.CUSTOM_SNAPSHOT_SERVER}
-            onClick={() =>
-              setSourcifySource(SourcifySource.CUSTOM_SNAPSHOT_SERVER)
-            }
-          >
-            Local Snapshot
-          </SourcifyMenuItem>
         </Menu.Items>
       </div>
     </Menu>

src/url.ts

@@ -23,16 +23,12 @@ export enum SourcifySource {
 
   // Centralized Sourcify servers
   CENTRAL_SERVER,
-
-  // Snapshot server
-  CUSTOM_SNAPSHOT_SERVER,
 }
 
 const sourcifyIPNS =
   "k51qzi5uqu5dll0ocge71eudqnrgnogmbr37gsgl12uubsinphjoknl6bbi41p";
 const defaultIpfsGatewayPrefix = `https://ipfs.io/ipns/${sourcifyIPNS}`;
 const sourcifyHttpRepoPrefix = `https://repo.sourcify.dev`;
-const snapshotPrefix = "http://localhost:3006";
 
 const resolveSourcifySource = (source: SourcifySource) => {
   if (source === SourcifySource.IPFS_IPNS) {
@@ -41,7 +37,8 @@ const resolveSourcifySource = (source: SourcifySource) => {
   if (source === SourcifySource.CENTRAL_SERVER) {
     return sourcifyHttpRepoPrefix;
   }
-  return snapshotPrefix;
+
+  throw new Error(`Unknown Sourcify intergration source code: ${source}`);
 };
 
 export const sourcifyMetadata = (