remove global metadata lock

Change-Id: Id05ff463fee356b3270b53d0b3137c4b1bc3d830
Reviewed-on: http://fulliautomatix.ics.uci.edu:8443/84
Reviewed-by: Sattam Alsubaiee <salsubaiee@gmail.com>
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
13 files changed