Enable remote.NAME.enableBatchedRefs by default

The batch ref-upate processing is now complete and can
be enabled by default, because of being the safest option
to replicate updates to the remote replication endpoints.

Change-Id: Iee482030843135cae3cbc557957033641099d18f

src/main/java/com/googlesource/gerrit/plugins/replication/pull/SourceConfiguration.java

diff --git a/src/main/java/com/googlesource/gerrit/plugins/replication/pull/SourceConfiguration.java b/src/main/java/com/googlesource/gerrit/plugins/replication/pull/SourceConfiguration.java
index 00fa23d..d481dbb 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/replication/pull/SourceConfiguration.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/replication/pull/SourceConfiguration.java
@@ -121,7 +121,7 @@
                 DEFAULT_DRAIN_SHUTDOWN_TIMEOUT_SECS,
                 TimeUnit.SECONDS);
 
-    enableBatchedRefs = cfg.getBoolean("remote", name, "enableBatchedRefs", false);
+    enableBatchedRefs = cfg.getBoolean("remote", name, "enableBatchedRefs", true);
     if (!enableBatchedRefs) {
       logger.atWarning().log(
           "You haven't enabled batched refs in the %s node, as such you are not "

src/main/resources/Documentation/config.md

diff --git a/src/main/resources/Documentation/config.md b/src/main/resources/Documentation/config.md
index acc636b..abc96ca 100644
--- a/src/main/resources/Documentation/config.md
+++ b/src/main/resources/Documentation/config.md
@@ -603,23 +603,14 @@
 	everything from all remotes.
 
 remote.NAME.enableBatchedRefs
-:	Choose whether the batch-apply-object endpoint is enabled.
-	If you set this to `true`, then there will be a single call
-	to the batch-apply-object endpoint with all the refs from
-	the batch ref update included. The default behaviour means
-	one call to the apply object(s) endpoint per ref.
-
-	*NOTE*: the default value is only needed for backwards
-	compatibility to allow migrating transparently to the
-	latest pull-replication plugin version. Once the migration is
-	over, this value should be set to `true` to leverage the
-	performance improvements introduced by the `batch-apply-object` API.
+:	Keep the synchronous replication actions together as a single call
+	with all the refs included in the batch ref update.
 
 >	*NOTE*: if any ref from a single batch matches `replication.syncRefs`
 >	filter, all refs in that batch are going to be fetched synchronously as
 >	a single git fetch operation.
 >
->	By default, false.
+>	By default, true.
 
 Directory `replication`
 --------------------