bp_core_xprofile_clear_all_user_progress_cache()

function bp_core_xprofile_clear_all_user_progress_cache() {

	delete_metadata(
		'user',        // the meta type.
		0,             // this doesn't actually matter in this call.
		'bp_profile_completion_widgets', // the meta key to be removed everywhere.
		'',            // this also doesn't actually matter in this call.
		true           // tells the function "yes, please remove them all".
	);

}