This removes the legacy multiplier factor called
TIS_WORKERS_FACTORS under keystone-all which scales the
workers assigned to all controllers(expect for AIO) by 1.5.
Test plan:
1 Build ISO with the change; verify installation on local DC
2 Verify keystone worker reduction on a lab DC system
3 Patch the change to a large DC system and soak for 2-3hours
Story: 2008960
Task: 44122
Signed-off-by: BoYuan Chang <boyuan.chang@windriver.com>
Change-Id: Ic3ab6890771bce45dd6f2bff49a25b5e3cfc6214
10dc6c2832