Remove extraneous call to remove() supplemental plenary template.
Remove extraneous call to remove() supplemental plenary template.

This is now handled by the PlenaryCollection class.

guillaume-philippon/aquilon,stdweird/aquilon,stdweird/aquilon,stdweird/aquilon,guillaume-philippon/aquilon,quattor/aquilon,guillaume-philippon/aquilon,quattor/aquilon,quattor/aquilon