chore: Rename controllers constructors to NewController

[jonathan-innis]

Fixes #N/A

Description

This PR removes the calls that built the specific controller types when we were supporting both alpha and beta and replaces it with a call to just make NewController

How was this change tested?

make presubmit

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[k8s-ci-robot]

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[coveralls]

Pull Request Test Coverage Report for Build 7025732502

• 24 of 30 (80.0%) changed or added relevant lines in 6 files are covered.
• 12 unchanged lines in 5 files lost coverage.
• Overall coverage decreased (-0.1%) to 79.439%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
pkg/controllers/nodeclaim/consistency/controller.go	4	5	80.0%
pkg/controllers/nodeclaim/disruption/controller.go	4	5	80.0%
pkg/controllers/nodeclaim/lifecycle/controller.go	4	5	80.0%
pkg/controllers/nodeclaim/termination/controller.go	4	5	80.0%
pkg/controllers/nodepool/counter/controller.go	4	5	80.0%
pkg/controllers/nodepool/hash/controller.go	4	5	80.0%

Files with Coverage Reduction	New Missed Lines	%
pkg/controllers/nodeclaim/consistency/controller.go	1	60.71%
pkg/controllers/nodeclaim/disruption/controller.go	1	53.73%
pkg/controllers/nodeclaim/lifecycle/controller.go	1	71.93%
pkg/controllers/disruption/drift.go	2	79.1%
pkg/controllers/provisioning/scheduling/preferences.go	7	86.67%

Totals
Change from base Build 7025403617:	-0.1%
Covered Lines:	7963
Relevant Lines:	10024

---

💛 - Coveralls

[engedaam]

/lgtm