The repos in /etc/yum.repos.d are immaterial if you are not actively trying to install a package (either directly or as a dependency) from that specific repo.
I had forgotten to mention that there is one file created by the installation of the nvidia drivers from rpmfusion that would need removed before the nouveau drivers would load properly. /etc/modprobe.d/nvidia-installer-disable-nouveau.conf which contains
$ cat /etc/modprobe.d/nvidia-installer-disable-nouveau.conf
# generated by nvidia-installer
blacklist nouveau
options nouveau modeset=0
It seems likely that file prevented the nouveau driver from loading even after removing the nvidia driver.