anchor.diff:  
   The `delete-field` command removes a field definition from your schema. If the field does not exist in the schema, or if the field is the source or destination of a copy field rule, an error is thrown.
   
  -For example, to delete a field named "sell-by", you would POST the following request:
  +For example, to delete a field named "sell_by", you would POST the following request:
   
   [.dynamic-tabs]
   --
  
positive.code: ----
  curl -X POST -H 'Content-type:application/json' --data-binary '{
    "replace-field":{
       "name":"sell-by",
       "type":"date",
       "stored":false }
  }' http://localhost:8983/solr/gettingstarted/schema
  
negative.code: [source,bash]
  ----
  curl -X POST -H 'Content-type:application/json' --data-binary '{
    "delete-field" : { "name":"sell_by" }
  }' http://localhost:8983/solr/gettingstarted/schema
  ----
  ====
  