Change testsuite to use dublin for all repos

Change testsuite docker job to use specified
branch for all repos instead of a mix of branch
and master.

Also clean up jobs for heatbridge.

Change-Id: Icc1d3aa8703fc6c949e1b7dc243676b1263a5048
Issue-ID: INT-1070
Signed-off-by: Gary Wu <gary.i.wu@huawei.com>
3 files changed