Remove eventType reference

Author: mapedraza

doc/admin.md

@@ -11,7 +11,6 @@
         -   [mongodb](#mongodb)
         -   [iotManager](#iotmanager)
         -   [types](#types)
-        -   [eventType](#eventtype)
         -   [service](#service)
         -   [subservice](#subservice)
         -   [providerUrl](#providerurl)
@@ -323,10 +322,6 @@ added `agentPath`:
 
 See **Type Configuration** in the [Configuration API](#configurationapi) section below.
 
-#### `eventType`
-
-Default type for the Events (useful only with the `addEvents` plugin).
-
 #### `service`
 
 Default service for the IoT Agent. If a device is being registered, and no service information comes with the device