[wsrp-wsia] [change request #251] Delete access control statement

[Rich Thompson <richt2@us.ibm.com>]

Document: Spec v0.92 
Section: 9.3 
Page: 61
Requested By: Alejandro Abdelnur

Old text:  "Additionally, a Producer MAY can implement access
control 
programmatically through the use of facilities such as an authenticated
user identity."

New text: delete

Reasoning: WSRP does not define how the authenticated user identity is
propagated.