Remove AccountPatchReview data when change gets auto-abandoned

Add 'changeCleanup.cleanupAccountPatchReview' parameter (by default
'false') to wipe out AccountPatchReview data when change gets
auto-abandoned.

Change-Id: Ie7ac0a6c70284ba20c8bd674b82bfa3f01bf35aa
Signed-off-by: Jacek Centkowski <jcentkowski@collab.net>
diff --git a/Documentation/config-gerrit.txt b/Documentation/config-gerrit.txt
index d8801eb..b28f943 100644
--- a/Documentation/config-gerrit.txt
+++ b/Documentation/config-gerrit.txt
@@ -1364,6 +1364,13 @@
 +
 By default `true`.
 
+[[changeCleanup.cleanupAccountPatchReview]]changeCleanup.cleanupAccountPatchReview::
++
+Whether accountPatchReview data should be also removed when change
+gets auto-abandoned.
++
+By default `false`.
+
 [[changeCleanup.abandonMessage]]changeCleanup.abandonMessage::
 +
 Change message that should be posted when a change is abandoned.