Update modules/authorization/proc-sending-request-to-the-rbac-rest-api-by-using-curl.adoc

Author: themr0c

modules/authorization/proc-sending-request-to-the-rbac-rest-api-by-using-curl.adoc

@@ -15,7 +15,7 @@ include::snip-finding-bearer-token.adoc[]
 .Default request
 [source,subs="+attributes,+quotes"]
 ----
-curl -v -H "Content-Type: application/json" \
+curl -v \
   -H "Authorization: Bearer _<token>_" \
   -X __<method>__ "{my-product-url}/__<endpoint>__" \
 ----