Hello Danny,
You can remove the website field by editing the file /components/com_easyblog/themes/dashboard/system/dashboard.profile.blog.php and removing the codes below:
<li>
<label for="url"><?php echo JText::_('COM_EASYBLOG_DASHBOARD_BLOGGER_WEBSITE'); ?> :</label>
<div><input class="input text width-250" id="url" type="text" name="url" size="50" value="<?php echo $this->escape( $profile->url ); ?>" /></div>
</li>
As for the meta details, edit the file /component/com_easyblog/themes/dashboard/system/dashboard.profile.php and remove the codes below,
<?php echo $this->fetch( 'dashboard.profile.seo.php' ); ?>