Delete empty directories in elfeed-db-gc.
Delete empty directories in elfeed-db-gc.

holomorph/elfeed,emacsmirror/elfeed,daimrod/elfeed,algernon/elfeed,jinnovation/elfeed,daimrod/elfeed,seblemaguer/elfeed,seblemaguer/elfeed,holomorph/elfeed,jinnovation/elfeed,algernon/elfeed,skeeto/elfeed,emacsmirror/elfeed,abo-abo/elfeed,skeeto/elfeed