bp_remove_member_type( int $user_id, string $member_type )

function bp_remove_member_type( $user_id, $member_type ) {
	// Bail if no valid profile type was passed.
	if ( empty( $member_type ) || ! bp_get_member_type_object( $member_type ) ) {
		return false;
	}

	$deleted = bp_remove_object_terms( $user_id, $member_type, bp_get_member_type_tax_name() );

	// Bust the cache if the type has been removed.
	if ( ! is_wp_error( $deleted ) ) {
		wp_cache_delete( $user_id, 'bp_member_member_type' );

		/**
		 * Fires just after a user's profile type has been removed.
		 *
		 * @since BuddyPress 2.3.0
		 *
		 * @param int    $user_id     ID of the user whose profile type has been updated.
		 * @param string $member_type profile type.
		 */
		do_action( 'bp_remove_member_type', $user_id, $member_type );
	}

	return $deleted;
}