Revert "[TEST] Add REST awaitsFix for bulk fields test"

This reverts commit 799e8019804658e3632a1bc718c801c501e94e15.

rest-api-spec/src/main/resources/rest-api-spec/test/bulk/40_fields.yaml

@@ -1,8 +1,5 @@
 ---
 "Fields":
-  - skip:
-      version: "all"
-      reason: awaiting test fix
   - do:
       index:
         refresh: true