What this PR does / why we need it:
Remove the validation for the service account. If no service account is provided the VMs will be created without one.
The was done with #49 but was mistakenly added again with #41.
Which issue(s) this PR fixes:
Fixes #
Special notes for your reviewer:
Release note:
A bug causing machine spec validation to fail has been fixed.
What this PR does / why we need it: Remove the validation for the service account. If no service account is provided the VMs will be created without one. The was done with #49 but was mistakenly added again with #41.
Which issue(s) this PR fixes: Fixes #
Special notes for your reviewer:
Release note: