functions.php

<?php
function make_remove_likes() {
	global $post;
	if ( get_post_type() == 'projects' ) {
		remove_filter( 'the_content', 'sharing_display', 1 );
		remove_filter( 'the_content', 'post_likes', 1 );
	}
}
add_filter( 'the_content', 'make_remove_likes' );