Remove redundant staging tagging script

 - unified merge verification no longer does docker image staging,
   so removing this script to avoid confusion

Issue-ID: INT-1833
Signed-off-by: Lasse Kaihlavirta <l.kaihlavirt@partner.samsung.com>
Change-Id: I29185a0a56b57513f323294ac95eca4fb03f4c10
1 file changed