Revert "Bug 1020134 - Add backgrounds to pre-defined collectionsBug 1020134 - Add backgrounds to pre-defined collections"

This reverts commit 054e1c6852a0fefcff08448792cf987e9aef9c6e.
Merge pull request #20216 from crdlc/bug-1020134-revert

Bug 1020134 revert