Removing it using custom css or javascript looks like the only option possible? Is there a way to comment that in the markup?
I see that the file call the css from a absolute url so it is not possible to change. Some ideas?
Clearly this plugin does not follow the WordPress guidelines.
See #10 here – https://wordpress.org/plugins/about/guidelines/
10. The plugin must not embed external links on the public site (like a “powered by” link) without explicitly asking the user’s permission. Any such options in the plugin must default to NOT show the link.
The plugin should either be fixed so that the default is to *not* show the link, or the plugin should be removed from the repository. (That’s what happened to one of our own plugins – It was removed until we fixed it)
Yes it is true, the plugin it is not regular. They have to fix this! More over it is ridiculous ask 7 usd/month for this.