nsComputedDOMStyle::RemoveProperty(const nsString& aPropertyName, nsString& aReturn)
nsComputedDOMStyle::RemoveProperty(const nsAString& aPropertyName, nsAString& aReturn)
nsComputedDOMStyle::RemoveProperty(const nsString& aPropertyName,                                   nsString& aReturn){  return NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR;}