Do not set default value of 1 for CQ for reviewer's replies.

See https://bugs.chromium.org/p/chromium/issues/detail?id=618784#c22

project.config

diff --git a/project.config b/project.config
index 017fe09..b00440c 100644
--- a/project.config
+++ b/project.config
@@ -71,10 +71,9 @@
 	value =  0 Not Ready
 	value = +1 Dry Run
 	# Comment the following line if you want to disallow automatic CQ commits.
-	# Note, that CQ just "clicks" Submit button, so all the usual checks 
+	# Note, that CQ just "clicks" Submit button, so all the usual checks
 	# (such as Code-Review +2) are applied by Gerrit.
 	value = +2 Ready
-	defaultValue = 1
 
 # Label CQ Verified is not required for CQ operation, it's for UI only,
 # unless you choose to require this to be set in order to submit a change.