nixos/nix*: remove not necessary imports

We do not really declare module dependencies anywhere else and it would
a nousance to move any file if many other referenced it without being
necessary. Also most higher level modules depend on most of the lower
level ones.
So removing this because it can only potentially cause weird issues.

nixos/modules/config/nix-remote-build.nix

@@ -50,10 +50,6 @@ let
 
 in
 {
-  imports = [
-    ./nix.nix
-  ];
-
   options = {
     nix = {
       buildMachines = mkOption {

nixos/modules/services/system/nix-daemon.nix

@@ -40,8 +40,6 @@ in
 
 {
   imports = [
-    ../../config/nix.nix
-
     (mkRenamedOptionModuleWith { sinceRelease = 2205; from = [ "nix" "daemonIONiceLevel" ]; to = [ "nix" "daemonIOSchedPriority" ]; })
     (mkRenamedOptionModuleWith { sinceRelease = 2211; from = [ "nix" "readOnlyStore" ]; to = [ "boot" "readOnlyNixStore" ]; })
     (mkRemovedOptionModule [ "nix" "daemonNiceLevel" ] "Consider nix.daemonCPUSchedPolicy instead.")