chore: pkg import only once

[testwill]

What this PR does / why we need it:

Which issue(s) this PR fixes (optional, in Fixes #<issue number>, #<issue number>, ... format, will close the issue(s) when PR gets merged):
Fixes #

Checklist:

• Docs included if any changes are user facing

[johnugeorge]

Thanks for this fix.

/lgtm
/approve

[google-oss-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: johnugeorge, testwill

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[coveralls]

Pull Request Test Coverage Report for Build 6966600551

• 0 of 3 (0.0%) changed or added relevant lines in 1 file are covered.
• 6 unchanged lines in 1 file lost coverage.
• Overall coverage decreased (-0.06%) to 42.803%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
pkg/controller.v1/common/job.go	0	3	0.0%

Files with Coverage Reduction	New Missed Lines	%
pkg/controller.v1/mpi/mpijob_controller.go	6	80.67%

Totals
Change from base Build 6941773842:	-0.06%
Covered Lines:	3747
Relevant Lines:	8754

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💛 - Coveralls