Revert "faft: Don't disable sysinfo, as local_dash uses sysinfo to get fw versions"

This reverts commit d6da7bf306f6ca5a64d530828ba9a77cb21f4cf9

The original fix is not a good idea since it rapidly consume disk space. It can be fixed in local_dash. Check more info in the bug.

BUG=chromium-os:36326

Change-Id: I0a0e8ca403e4c619f1352bc070a1c05ccf058d02
Reviewed-on: https://gerrit.chromium.org/gerrit/38171
Reviewed-by: Vic Yang <victoryang@chromium.org>
Commit-Ready: Tom Wai-Hong Tam <waihong@chromium.org>
Tested-by: Tom Wai-Hong Tam <waihong@chromium.org>
diff --git a/server/site_tests/firmware_ECWriteProtect/control.dev b/server/site_tests/firmware_ECWriteProtect/control.dev
index 441615d..4f1866c 100644
--- a/server/site_tests/firmware_ECWriteProtect/control.dev
+++ b/server/site_tests/firmware_ECWriteProtect/control.dev
@@ -35,6 +35,7 @@
 def run_ecwriteprotect(machine):
     host = hosts.create_host(machine, servo_args=servo_args)
     job.run_test("firmware_ECWriteProtect", host=host, cmdline_args=args,
-                 use_faft=True, dev_mode=True, tag="dev")
+                 use_faft=True, disable_sysinfo=True,
+                 dev_mode=True, tag="dev")
 
 parallel_simple(run_ecwriteprotect, machines)