Clean up system imports

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

hosts/installer/default.nix

@@ -10,15 +10,11 @@
     ./hardware
 
     ../common/configs/system/boot
-    ../common/configs/system/btop
     ../common/configs/system/btrfs
-    ../common/configs/system/fastfetch
     ../common/configs/system/getty
     ../common/configs/system/git
     ../common/configs/system/gpg-agent
     ../common/configs/system/impermanence
-    ../common/configs/system/lsof
-    ../common/configs/system/ncdu
     ../common/configs/system/neovim
     ../common/configs/system/networking
     ../common/configs/system/nix
@@ -26,7 +22,6 @@
     ../common/configs/system/nix-ld
     ../common/configs/system/nixpkgs
     ../common/configs/system/ntp
-    ../common/configs/system/ranger
     ../common/configs/system/sops
     ../common/configs/system/ssh
     ../common/configs/system/system