codereview.settings: do not force squashing behavior

Leave it to the user to decide how to manage their local tree state.

Bug: 993518
Change-Id: Ic026f9bdc11e1a16f91da74f1b173753c6efa88c
Reviewed-on: https://chromium-review.googlesource.com/c/breakpad/breakpad/+/1753593
Reviewed-by: Mark Mentovai <mark@chromium.org>
diff --git a/codereview.settings b/codereview.settings
index 2a60978..3f93733 100644
--- a/codereview.settings
+++ b/codereview.settings
@@ -1,4 +1,3 @@
 GERRIT_HOST: True
-GERRIT_SQUASH_UPLOADS: True
 CODE_REVIEW_SERVER: chromium-review.googlesource.com
 VIEW_VC: https://chromium.googlesource.com/breakpad/breakpad/+/