Allow feature gate removal through the APIzj-feature-gate-remove-http-api

Features could be listed and added through the api, now also removed.
This was needed in the case of gitlab.com as the number of gates that
were ever used just grows and cleaning up is hard.

1 files changed, 8 insertions, 0 deletions

diff --git a/doc/api/features.md b/doc/api/features.md
index 6861dbf00a2..6ee1c36ef5b 100644
--- a/doc/api/features.md
+++ b/doc/api/features.md
@@ -86,3 +86,11 @@ Example response:
   ]
 }
 ```
+
+## Delete a feature
+
+Removes a feature gate. Response is equal when the gate exists, or doesn't.
+
+```
+DELETE /features/:name
+```