How can I delete a cookie from a plugin?
I wasn't able to find an answer for removing a cookie in Craft 3 so after plenty of time of trying to figuring it out, this is my conclusion. 

First of all, I am setting the cookie using the following method.

$cookie = new Cookie(['name' =&gt; 'cookieName']);
$cookie-&gt;value = $data['accessToken'];
$cookie-&gt;expire = $data['expires'];
Craft::$app-&gt;getResponse()-&gt;getCookies()-&gt;add($cookie);


I kept running into a problem with the Cookies being set are read-only so in order to remove the cookie need to use response to change and remove cookies.

Craft::$app-&gt;response-&gt;cookies-&gt;remove('cookieName');