refactor(dynamite): remove unused resolvedInterfaces

Signed-off-by: Nikolas Rimikis <leptopoda@users.noreply.github.com>

Author: Leptopoda

packages/dynamite/dynamite/lib/src/builder/resolve_object.dart

@@ -19,10 +19,6 @@ TypeResultObject resolveObject(
   );
 
   if (state.resolvedTypes.add(result)) {
-    if (schema.allOf == null) {
-      state.resolvedInterfaces.add(result);
-    }
-
     final $interface = buildInterface(
       spec,
       state,

packages/dynamite/dynamite/lib/src/builder/state.dart

@@ -11,7 +11,6 @@ class State {
 
   final output = <Spec>[];
   final resolvedTypes = <TypeResult>{};
-  final resolvedInterfaces = <TypeResult>{};
   final emitter = DartEmitter.scoped(
     orderDirectives: true,
     useNullSafetySyntax: true,