4.1.8 - register - remove date of birth

[ka81]

right now it is:

<div class="blockrow singlecheck">
				<label for="cb_rules_agree" class="full"><input type="checkbox" name="agree" id="cb_rules_agree" tabindex="1" value="1" /> <strong>{vb:rawphrase read_agree_abide_by_rules, {vb:raw vboptions.bbtitle}}</strong></label>
			</div>

so, if I only change input type to "hidden" it will be automatically checked there? i've done it but checkbox just disappeared..