Remove back references

[lionelkusch]

When footcite is used multiple times, the reference has a (in this case, very long) list of indices in the biblio.
Do you know if there is a workaround?

Originally posted by @jpaillard in #401 (comment)

[lionelkusch]

It's possible to remove back references. This is a section of the documentation of sphinxcontrib-bibtex.

@jpaillard do you want to remove the back references to all the documentation or only to specific files?