This reverts commit 84b3ae3ae9.
The logic was incorrect[1]. We cannot achieve QoS egress minimum bandwidth of Linuxbridge by the patch. I also think that the issue is not solved by small patch and we must consider deeply.
Closes-bug: 1662582
(cherry picked from commit e3063496cf)
Change-Id: Id4703b5c63876f16e31b6805cd147b5840a4a591