Remove Villhellm/custom-sidebar

Closes hacs/integration#3115

plugin

@@ -282,7 +282,6 @@
   "usernein/tv-card",
   "vasqued2/ha-teamtracker-card",
   "VeniVidiVici/givtcp-power-flow-card",
-  "Villhellm/custom-sidebar",
   "Villhellm/lovelace-animated-background",
   "Villhellm/lovelace-clock-card",
   "Voxxie/lovelace-jumbo-card",
@@ -291,4 +290,4 @@
   "wassy92x/lovelace-entities-btn-group",
   "wassy92x/lovelace-ha-dashboard",
   "zanna-37/hass-swipe-navigation"
-]
+]