Removing posts date in Google SERPs

Hey guys! Im trying to remove the date that shows up in the Google SERPs for every post I publish. I already removed the date, author etc on the posts using this code:

.entry-author-link,
.entry-permalink,
.entry-date,
.entry-meta {
	display: none;
}

But it's still showing in the SERPs. How can I remove it there as well? Thanks for any help