hosts/skycam: remove patched camera utilities

- Remove libcamera overlay
- Remove camera-streamer package
- Remove rpicam-apps package

hosts/skycam/default.nix

@@ -68,10 +68,6 @@
     SUBSYSTEM=="dma_heap", GROUP="video", MODE="0660"
   '';
 
-  nixpkgs.overlays = [
-    (import ./../../overlays/libcamera.nix)
-  ];
-
   networking = {
     hostId = "731d1660";
     firewall = {
@@ -104,7 +100,6 @@
   };
 
   environment.systemPackages = with pkgs; [
-    camera-streamer
     git
     neovim
     libcamera