Wordpress - Removing Two Unneccesary HTTP calls from Home Page (preferably via functions.php if practical?).

Hi folks, within devtools>network I have two unnecessary HTTP calls for 2 image files being that are not needed on the homepage of www.recoveryaudio.org.  One is from a plugin, one is from the parent theme.

The files in question are:
http://www.recoveryaudio.org/wp-content/plugins/wp-postratings/images/stars/rating_over.gif
http://www.recoveryaudio.org/wp-content/themes/responsive/core/images/select-icons.png

Is there some kind of slick way I can use functions.php to prevent them from being called?

Note:  I have some code in functions.php I can share that dequeues a script from the homepage (via page ID, but I can't figure out in the codex how to delete or prevent  these http calls on the homepage.

Thanks in advance for the advice/help!