Remove fulltext recreate-key config value

It's now in the admin routes, protected by the
`admin-endpoint.secret`.

modules/restserver/src/main/resources/reference.conf

@@ -117,10 +117,13 @@ docspell.server {
   # installed the app and have access to the system. Normal users
   # should not have access and therefore a secret must be provided in
   # order to access it.
+  #
+  # This is used for some endpoints, for example:
+  # - re-create complete fulltext index:
+  #   curl -XPOST -H'Docspell-Admin-Secret: xyz' http://localhost:7880/api/v1/admin/fts/reIndexAll
   admin-endpoint {
     # The secret. If empty, the endpoint is disabled.
     secret = ""
-
   }
 
   # Configuration of the full-text search engine.
@@ -132,14 +135,6 @@ docspell.server {
     # Currently the SOLR search platform is supported.
     enabled = false
 
-    # When re-creating the complete index via a REST call, this key
-    # is required. If left empty (the default), recreating the index
-    # is disabled.
-    #
-    # Example curl command:
-    # curl -XPOST http://localhost:7880/api/v1/open/fts/reIndexAll/test123
-    recreate-key = ""
-
     # Configuration for the SOLR backend.
     solr = {
       # The URL to solr

modules/restserver/src/main/scala/docspell/restserver/Config.scala

@@ -59,7 +59,7 @@ object Config {
     }
   }
 
-  case class FullTextSearch(enabled: Boolean, recreateKey: Ident, solr: SolrConfig)
+  case class FullTextSearch(enabled: Boolean, solr: SolrConfig)
 
   object FullTextSearch {}