Removing the reference to my site after the copied text

Hello – I would like to be able to have the desired text copied and pasted without the added referenced to my site.

Here’s my example:
This is a test for the copy to clipboard shortcode. via https://anneelizabethdenny.com/?p=1230

Is there a way to eliminate this
“via https://anneelizabethdenny.com/?p=1230”

so that it doesn’t get included in the copy?

Thank you,
Anne

https://www.ads-software.com/plugins/copy-to-clipboard-mobile-web/