clean up abandoned packages

build-constraints.yaml

@@ -5064,20 +5064,13 @@ packages:
     # It will then be disabled if it starts causing problems.
     # See #1056/closed
     "Abandoned packages":
-        - curl
         - Earley
-        - non-empty-sequence
-
-        # Purescript
         - bower-json
         - boxes
-        - pattern-arrows
-        # - purescript # BLOCKED aeson-1.0
-
-        # - type-list # GHC 8.2.1 via singletons 2.3
-        # - vinyl-utils # BOUNDS vinyl 0.6
-        # - language-lua2 # https://github.com/mitchellwrosen/language-lua2/issues/4 # GHC 8.2.1
         - cassava
+        - curl
+        - non-empty-sequence
+        - pattern-arrows
 
     # Packages without maintainers that cause issues,
     # this is to prevent us from including them by accident. They can