Update concept-all-sign-ins.md

We no longer publish IP addresses in the MSI report due to Azure security concerns. Removing it in the docs as well

Author: besiler

articles/active-directory/reports-monitoring/concept-all-sign-ins.md

@@ -315,8 +315,6 @@ To make it easier to digest the data, managed identities for Azure resources sig
 
 - Status
 
-- IP address
-
 - Resource name or ID
 
 Select an item in the list view to display all sign-ins that are grouped under a node.
@@ -432,4 +430,4 @@ Each JSON download consists of four different files:
 
 * [Sign-in activity report error codes](reference-sign-ins-error-codes.md)
 * [Azure AD data retention policies](reference-reports-data-retention.md)
-* [Azure AD report latencies](reference-reports-latencies.md)
+* [Azure AD report latencies](reference-reports-latencies.md)