message: remove references to disused RIOT.USER_NOT_FOUND error code
diff: @@ -164,7 +164,7 @@ export default class MultiInviter {
  this._doInvite(address, ignoreProfile).then(resolve, reject);
  }, 5000);
  return;
  - } else if (['M_NOT_FOUND', 'M_USER_NOT_FOUND', 'RIOT.USER_NOT_FOUND'].includes(err.errcode)) {
  + } else if (['M_NOT_FOUND', 'M_USER_NOT_FOUND'].includes(err.errcode)) {
  errorText = _t("User %(user_id)s does not exist", {user_id: address});
  } else if (err.errcode === 'M_PROFILE_UNDISCLOSED') {
  errorText = _t("User %(user_id)s may or may not exist", {user_id: address});
  @@ -205,7 +205,7 @@ export default class MultiInviter {
  if (Object.keys(this.errors).length > 0 && !this.groupId) {
  // There were problems inviting some people - see if we can invite them
  // without caring if they exist or not.
  - const unknownProfileErrors = ['M_NOT_FOUND', 'M_USER_NOT_FOUND', 'M_PROFILE_UNDISCLOSED', 'M_PROFILE_NOT_FOUND', 'RIOT.USER_NOT_FOUND'];
  + const unknownProfileErrors = ['M_NOT_FOUND', 'M_USER_NOT_FOUND', 'M_PROFILE_UNDISCLOSED', 'M_PROFILE_NOT_FOUND'];
  const unknownProfileUsers = Object.keys(this.errors).filter(a => unknownProfileErrors.includes(this.errors[a].errcode));
  if (unknownProfileUsers.length > 0) {
  