Fix duplicate magnet validator definition

js/app.js

@@ -87,60 +87,6 @@ const BITVID_WEBSITE_URL = "https://bitvid.network/";
 const MAX_DISCUSSION_COUNT_VIDEOS = 24;
 const VIDEO_EVENT_KIND = 30078;
 const HEX64_REGEX = /^[0-9a-f]{64}$/i;
-/**
- * Basic validation for BitTorrent magnet URIs.
- *
- * Returns `true` only when the value looks like a magnet link that WebTorrent
- * understands (`magnet:` scheme with at least one `xt=urn:btih:<info-hash>`
- * entry, where `<info-hash>` is either a 40-character hex digest or a
- * 32-character base32 digest). Magnets that only contain BitTorrent v2 hashes
- * (e.g. `btmh`) are treated as unsupported.
- */
-function isValidMagnetUri(magnet) {
-  const trimmed = typeof magnet === "string" ? magnet.trim() : "";
-  if (!trimmed) {
-    return false;
-  }
-
-  const decoded = safeDecodeMagnet(trimmed);
-  const candidate = decoded || trimmed;
-
-  if (/^[0-9a-f]{40}$/i.test(candidate)) {
-    return true;
-  }
-
-  try {
-    const parsed = new URL(candidate);
-    if (parsed.protocol.toLowerCase() !== "magnet:") {
-      return false;
-    }
-
-    const xtValues = parsed.searchParams.getAll("xt");
-    if (!xtValues.length) {
-      return false;
-    }
-
-    const hexPattern = /^[0-9a-f]{40}$/i;
-    const base32Pattern = /^[A-Z2-7]{32}$/;
-
-    return xtValues.some((value) => {
-      if (typeof value !== "string") return false;
-      const match = value.trim().match(/^urn:btih:([a-z0-9]+)$/i);
-      if (!match) return false;
-
-      const infoHash = match[1];
-      if (hexPattern.test(infoHash)) {
-        return true;
-      }
-
-      const upperHash = infoHash.toUpperCase();
-      return infoHash.length === 32 && base32Pattern.test(upperHash);
-    });
-  } catch (err) {
-    return false;
-  }
-}
-
 /**
  * Simple IntersectionObserver-based lazy loader for images (or videos).
  *