Here’s how to disable plugin in Yum repos.
# check which plugins are enabled
yum repolist
# disable plugins
yum update --disableplugin=product-id,subscription-manager
# check agin
yum repolist
If that doesn’t work, check the individual config files of each plugin.
cd /etc/yum/pluginconf.d/
vim product-id.conf
vim subscription-manager.conf
Disable it.
[main]
enable=0