@Override
  public boolean removeAttribute(String attName) {
    Attribute att = findAttribute(attName);
    return att != null && atts.remove(att);
  }
@ Override public boolean removeAttribute ( String attName ) { Attribute att = findAttribute ( attName ) ; return att != null && atts . remove ( att ) ; }
Remove an Attribute by name.

@param attName if exists, remove this attribute
@return true if was found and removed