Revert "Print content of description backup on exit"

This reverts commit 8c5cdf1812.

Reason for revert:
https://bugs.chromium.org/p/chromium/issues/detail?id=1056958

Original change's description:
> Print content of description backup on exit
> 
> R=​apolito@google.com
> 
> Bug: 1056193
> Change-Id: I656149b8ddad61f6b673193b72d780b72a585f43
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/2078308
> Commit-Queue: Josip Sokcevic <sokcevic@google.com>
> Reviewed-by: Anthony Polito <apolito@google.com>

TBR=apolito@google.com,infra-scoped@luci-project-accounts.iam.gserviceaccount.com,sokcevic@google.com

Change-Id: I5190f4e0f342d0ee06474e6c432004ef95bec85b
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 1056193
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/2079307
Reviewed-by: Edward Lesmes <ehmaldonado@chromium.org>
Commit-Queue: Edward Lesmes <ehmaldonado@chromium.org>

git_cl.py

@@ -133,10 +133,6 @@ _IS_BEING_TESTED = False
 def DieWithError(message, change_desc=None):
   if change_desc:
     SaveDescriptionBackup(change_desc)
-    print('\n ** Content of CL description **\n' +
-          '='*72 +  '\n' +
-          change_desc + '\n' +
-          '='*72 + '\n')
 
   print(message, file=sys.stderr)
   sys.exit(1)