Hello!
Yes, is Deprecated since 8.31:
Alarm Console (Deprecated) - CA Unified Infrastructure Management - 8.31 - CA Technologies Documentation
So No Longer Exists
As of the 8.31 release, the legacy alarm console was deprecated.
So, now, you will have to get used to working with alarms on USM.
To view the history of an alarm, you can click on the "more" button (below the alarm message) and then click on "History".
To view the whole Alarm History, you need to take a look at your right-side and find the "Actions" drop-down list. Once you click on it, you will see a button called "Show Historical", which will show all your historical alarms.
In order to find the ones you need, you may need to arrange some filters.
I would encourage you to take a look at the following links, related to alarms in USM:
Manage Alarms in USM - CA Unified Infrastructure Management - 8.4.7 - CA Technologies Documentation