Sif: remove unused apps

instances/sif/hm.nix

@@ -35,13 +35,13 @@
         evince
         file-roller
         gallery-dl
-        gnome-font-viewer
+        # gnome-font-viewer
         gnome-screenshot
         gnome-system-monitor
-        gucharmap
+        # gucharmap
         heroic
         inkscape
-        keyboard-switch
+        # keyboard-switch
         openvpn
         p7zip
         pavucontrol
@@ -52,7 +52,7 @@
         tdesktop
         teams-for-linux
         thunderbird
-        totem
+        # totem
         # transmission_4
         # wireguard-tools
         xournalpp