Remove simple-smp.md page from the sidebar

Author: Sporarum

docs/sidebar.yml

@@ -58,7 +58,7 @@ subsection:
           - page: reference/metaprogramming/staging.md
           - page: reference/metaprogramming/reflection.md
           - page: reference/metaprogramming/tasty-inspect.md
-          - page: reference/metaprogramming/simple-smp.md
+          # - page: reference/metaprogramming/simple-smp.md  description of a simplified metaprogramming language, this might not be the best place for it
       - title: Other New Features
         index: reference/other-new-features/other-new-features.md
         subsection: