libweave: Removed unused includes

Those includes unused.

BUG=brillo:1256
TEST=none

Change-Id: I615446dddf8468f956030073770bd510b0057fc4

libweave/src/device_registration_info.cc

diff --git a/libweave/src/device_registration_info.cc b/libweave/src/device_registration_info.cc
index 8bb47c9..91e1d12 100644
--- a/libweave/src/device_registration_info.cc
+++ b/libweave/src/device_registration_info.cc
@@ -16,7 +16,6 @@
 #include <base/strings/string_number_conversions.h>
 #include <base/values.h>
 #include <chromeos/bind_lambda.h>
-#include <chromeos/data_encoding.h>
 #include <chromeos/errors/error_codes.h>
 #include <chromeos/key_value_store.h>
 #include <chromeos/strings/string_utils.h>

libweave/src/privet/privet_manager.cc

diff --git a/libweave/src/privet/privet_manager.cc b/libweave/src/privet/privet_manager.cc
index c5b2fb8..9c12609 100644
--- a/libweave/src/privet/privet_manager.cc
+++ b/libweave/src/privet/privet_manager.cc
@@ -16,10 +16,8 @@
 #include <base/scoped_observer.h>
 #include <base/strings/string_number_conversions.h>
 #include <base/values.h>
-#include <chromeos/flag_helper.h>
 #include <chromeos/key_value_store.h>
 #include <chromeos/strings/string_utils.h>
-#include <chromeos/syslog_logging.h>
 #include <weave/network.h>
 
 #include "libweave/src/device_registration_info.h"