code: @Override
      public void removeProperty(Object description) {
          if (properties == null) {
              return;
          }
          if (lazyProperties().remove(description) != null) notifyChanged();
      }
docs: Removes a property for a IChemObject.
  
  @param  description  The object description of the property (most likely a
  unique string)
  @see                 #setProperty
  @see                 #getProperty