lib/modules: Finally remove deprecated types.optionSet

types.optionSet has been deprecated for almost 10 years now
(0e333688cea468a28516bf6935648c03ed62a7bb)! A removal
was already attempted in 2019
(27982b408e465554b8831f492362bc87ed0ec02a), but it was promptly
reinstantiated since some third-party uses were discovered
(f531ce75e4178c6867cc1d0f7fec96b2d5c3f1cb).

It's finally time to remove it for good :)

1 files changed, 0 insertions, 8 deletions

diff --git a/lib/types.nix b/lib/types.nix
index 00d97bf572372..5c4b963106178 100644
--- a/lib/types.nix
+++ b/lib/types.nix
@@ -749,14 +749,6 @@ rec {
         nestedTypes.finalType = finalType;
       };
 
-    # Obsolete alternative to configOf.  It takes its option
-    # declarations from the ‘options’ attribute of containing option
-    # declaration.
-    optionSet = mkOptionType {
-      name = "optionSet";
-      description = "option set";
-      deprecationMessage = "Use `types.submodule' instead";
-    };
     # Augment the given type with an additional type check function.
     addCheck = elemType: check: elemType // { check = x: elemType.check x && check x; };