bp_dd_delete_avatar( $args )

function bp_dd_delete_avatar( $args ) {
	$item_id = ! empty( $args['item_id'] ) ? absint( $args['item_id'] ) : 0;
	if ( ! empty( $item_id ) ) {

		// check for user avatars getting deleted
		if ( isset( $args['object'] ) && 'user' == $args['object'] ) {
			bp_delete_user_meta( $item_id, 'avatars' );
		}

		// check for group avatars getting deleted
		if ( isset( $args['object'] ) && 'group' == $args['object'] ) {
			groups_delete_groupmeta( $item_id, 'avatars' );
		}
	}
}