Removing deprecated Job Labels

[johnugeorge]

Deprecated Job labels are removed. Fully qualified labels will only be available.

Ref: kubeflow/common#200 kubeflow/common#149

[coveralls]

Pull Request Test Coverage Report for Build 3756888857

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 12 unchanged lines in 4 files lost coverage.
• Overall coverage decreased (-0.2%) to 39.248%

---

Files with Coverage Reduction	New Missed Lines	%
pkg/controller.v1/mpi/mpijob_controller.go	3	77.35%
pkg/controller.v1/paddlepaddle/paddlepaddle_controller.go	3	55.53%
pkg/controller.v1/pytorch/pytorchjob_controller.go	3	59.42%
pkg/controller.v1/tensorflow/tfjob_controller.go	3	70.7%

Totals
Change from base Build 3750765194:	-0.2%
Covered Lines:	2661
Relevant Lines:	6780

---

💛 - Coveralls

[terrytangyuan]

/lgtm

[google-oss-prow]

[APPROVALNOTIFIER] This PR is APPROVED

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

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [johnugeorge,terrytangyuan]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment