Simplify config leaving default values

Signed-off-by: Benoit Donneaux <benoit@leastauthority.com>

morph/grid/hro-cloud/storage001-config.nix

@@ -5,6 +5,4 @@
   "prefixLength" = 24;
   "gateway" = "185.225.209.1";
   "gatewayInterface" = "eno1";
-  "grubDeviceID" = "nodev"; #might be wrong
-  "systemd-boot" = false;
 }

morph/grid/hro-cloud/storage002-config.nix

@@ -5,6 +5,4 @@
   "prefixLength" = 29;
   "gateway" = "38.170.241.33";
   "gatewayInterface" = "eno1";
-  "grubDeviceID" = "nodev"; #nodev if we want to use efi (double check)
-  "systemd-boot" = false;
 }

morph/grid/hro-cloud/storage003-config.nix

@@ -5,7 +5,6 @@
   "prefixLength" = 24;
   "gateway" = "151.80.28.254";
   "gatewayInterface" = "eno3";
-  #"grubDeviceID" = "nodev";
   "grubDeviceID" = "nvme-eui.e8238fa6bf530001001b448b463b77bf";
   "systemd-boot" = true;
 }

nixos/modules/100tb.nix

@@ -68,10 +68,11 @@ let
     { type = lib.types.str;
       example = "wwn-0x5000c500936410b9";
       description = "The ID of the disk on which to install grub.";
+      default = "nodev";
     };
     systemd-boot = lib.mkOption
     { type = lib.types.bool;
-      example = false;
+      default = false;
       description = "Fill later";
     };
 
@@ -110,7 +111,7 @@ in {
   { boot.loader.grub.enable = true;
     boot.loader.grub.version = 2;
     boot.loader.grub.device = if cfg.grubDeviceID == "nodev"  then "nodev" else "/dev/disk/by-id/${cfg.grubDeviceID}";
-    boot.loader.systemd-boot.enable = if cfg.systemd-boot == ""  then false else cfg.systemd-boot; 
+    boot.loader.systemd-boot.enable = cfg.systemd-boot; 
     boot.loader.timeout = 10;
     networking.firewall.enable = false;