migrate lib functions to lib/, remove extra overlays

Signed-off-by: ahuston-0 <aliceghuston@gmail.com>

utils/default.nix

@@ -1,21 +0,0 @@
-{
-  config,
-  lib,
-  pkgs,
-  ...
-}:
-
-{
-  # create rad-dev namespace for lib
-  rad-dev = {
-    # any(), but checks if any value in the list is true
-    # type:
-    # anyBool:: [bool] -> bool
-    anyBool = lib.any (n: n);
-
-    # pulls a value out of an attrset and converts it to a list
-    # type:
-    # mapGetAttr :: String -> Attrset -> [Any]
-    mapGetAttr = (attr: set: lib.mapAttrsToList (_: attrset: lib.getAttr attr attrset) set);
-  };
-}