message: Remove mention links as they excessively notify users.
diff: @@ -310,7 +310,7 @@ export class DiscordBot {
  const member = msg.guild.members.get(id);
  let memberId = `@_discord_${id}:${this.config.bridge.domain}`;
  let memberStr = member ? member.user.username : memberId;
  - content = content.replace(results[0], `[${memberStr}](${MATRIX_TO_LINK}${memberId})`);
  + content = content.replace(results[0], memberStr);
  results = userRegex.exec(content);
  }
  // Replace channels
  