Kill logd in buildbot-setup.sh.

The daemon seems to leak on fugu with Android N.

Change-Id: I07202c0a6ce644e313c310e0592e3e0d58d158a0
diff --git a/tools/setup-buildbot-device.sh b/tools/setup-buildbot-device.sh
index 7eaaaf9..6c2c072 100755
--- a/tools/setup-buildbot-device.sh
+++ b/tools/setup-buildbot-device.sh
@@ -61,6 +61,9 @@
 echo -e "${green}Battery info${nc}"
 adb shell dumpsys battery
 
+echo -e "${green}Killing logd, seen leaking on fugu/N${nc}"
+adb shell killall -9 /system/bin/logd
+
 echo -e "${green}Setting adb buffer size to 32MB${nc}"
 adb logcat -G 32M
 adb logcat -g