Remove constraint about Forms in expose()

Signed-off-by: Zoltan Kis <[email protected]>

Author: zolkis

index.html

@@ -2879,9 +2879,6 @@ <h3>The <dfn>EventSubscriptionHandler</dfn> callback</h3>
             for <a>WoT Interactions</a> (read, write and observe <a>Properties</a>,
             invoke <a>Action</a>s and manage <a>Event</a> subscriptions),
             based on the <a>Protocol Bindings</a>.
-            If for any <a>WoT Interaction</a> there is no |form| specified that
-            is supported by the implementation, reject |promise| with a
-            {{NotSupportedError}} and abort these steps.
             Implementations MAY reject this step for any reason (e.g. if they
             want to enforce further checks and constraints on interaction forms).
           </li>