Comment 23 for bug 1805773

Reviewed: https://review.opencontrail.org/48203
Committed: http://github.com/Juniper/contrail-controller/commit/4e9b2a7e5747a7dc4ec9c5bc5388b58b29984d25
Submitter: Zuul (<email address hidden>)
Branch: R4.1

commit 4e9b2a7e5747a7dc4ec9c5bc5388b58b29984d25
Author: Parth Sarupria <email address hidden>
Date: Thu Dec 13 22:04:30 2018 -0800

Fix for possible mem leak and fix in refresh network map

Fix for the Possible leak in FindNetwork for unknown_location string object in structured_syslog_config.cc
Fix in RefreshNetworkMap in structured_syslog_config where vector begin element is deleted,
For Fixing this Iteration is now done in reverse order to avoid erasing of 0th index vector element first
which results in loss off begin() pointer causing already stored indexes to become incorrect.
Commented out sending of unnecessary field (sampling percentage) in structured_syslog_server.cc for APPTRACK_SESSION_CLOSE syslog.
Added Send code for tenant metrics UVE for PSMR syslog.

Change-Id: I8627e535c01fc81c036c2babc7509e2ab411f7e6
Closes-Bug: #1805773