Revert "support graceful node shutdown"

[SchSeba]

I will like to propose the revert of this PR.

This PR was intended to switch the machine config operator pause mechanism we have in place for openshift.
The problem is the feature is not fully integrated into openshift yet so merging this PR re-introduce the race conditions we had before in openshift between the sriov operator and the machine config operator.

Reverts #363

[github-actions]

Thanks for your PR,
To run vendors CIs use one of:

• /test-all: To run all tests for all vendors.
• /test-e2e-all: To run all E2E tests for all vendors.
• /test-e2e-nvidia-all: To run all E2E tests for NVIDIA vendor.

To skip the vendors CIs use one of:

• /skip-all: To skip all tests for all vendors.
• /skip-e2e-all: To skip all E2E tests for all vendors.
• /skip-e2e-nvidia-all: To skip all E2E tests for NVIDIA vendor.
  Best regards.

[SchSeba]

/cc @bn222 @e0ne @zshi-redhat

[coveralls]

Pull Request Test Coverage Report for Build 3377803353

• 3 of 130 (2.31%) changed or added relevant lines in 1 file are covered.
• 6 unchanged lines in 3 files lost coverage.
• Overall coverage decreased (-0.4%) to 25.23%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
pkg/daemon/daemon.go	3	130	2.31%

Files with Coverage Reduction	New Missed Lines	%
pkg/daemon/daemon.go	1	41.75%
controllers/sriovnetwork_controller.go	2	67.0%
api/v1/helper.go	3	41.2%

Totals
Change from base Build 3339373925:	-0.4%
Covered Lines:	1890
Relevant Lines:	7491

---

💛 - Coveralls

[adrianchiris]

/test-all

[zshi-redhat]

/lgtm

[bn222]

/lgtm

[SchSeba]

two maintainers from two different companies approve the change merging