pimd: Remove reference to external doc.
diff --git a/pimd/WHY_SSM b/pimd/WHY_SSM
index 6ff8f13..2e8c966 100644
--- a/pimd/WHY_SSM
+++ b/pimd/WHY_SSM
@@ -29,9 +29,4 @@
 - SSM will keep (S,G) state as long as there are subscriptions from
   receivers, even if the source is not actually sending traffic
 
-Cisco Documentation for SSM Benefits
-------------------------------------
-
-http://www.cisco.com/c/en/us/td/docs/ios/12_2/ip/configuration/guide/fipr_c/1cfssm.html#wp1000969
-
 --EOF--