add 3.0.3 uninstall entry to clean.reg
add 3.0.3 uninstall entry to clean.reg

Change-Id: Id62e1aae62d455c4ce5a1cb58c3a203ead90775b
Reviewed-on: http://review.couchbase.org/48561
Tested-by: buildbot <80754af91bfb6d1073585b046fe0a474ce868509@couchbase.com>
Reviewed-by: Wayne Siu <b9526479d8e75eec48092197447318d86d2194ec@couchbase.com>

EricACooper/perfrunner,mikewied/perfrunner,mikewied/perfrunner,vmx/perfrunner,EricACooper/perfrunner,couchbase/perfrunner,thomas-couchbase/perfrunner,pavel-paulau/perfrunner,couchbase/perfrunner,hsharsha/perfrunner,thomas-couchbase/perfrunner,pavel-paulau/perfrunner,dkao-cb/perfrunner,hsharsha/perfrunner,EricACooper/perfrunner,PaintScratcher/perfrunner,couchbase/perfrunner,EricACooper/perfrunner,vmx/perfrunner,couchbase/perfrunner,dkao-cb/perfrunner,couchbase/perfrunner,pavel-paulau/perfrunner,couchbase/perfrunner,PaintScratcher/perfrunner,pavel-paulau/perfrunner,pavel-paulau/perfrunner