chore(radixconfig): remove obsolete generator environment from build configuration

Author: torleifhalseth

radixconfig.yaml

@@ -13,9 +13,6 @@ spec:
     - name: dev
       build:
         from: feat/*
-    - name: generator
-      build:
-        from: feat/4246-add-optional-second-color-input-to-palette-generator
   dnsAppAlias:
     environment: prod
     component: docs