Removes duplication of devfile parsing and validation

[dharmit]

What type of PR is this?
/kind cleanup
/kind code-refactoring

What does this PR do / why we need it:
Parsing and Validation of devfile already happens in "Complete"
function.

Which issue(s) this PR fixes:

Fixes NA
Part of #4298

PR acceptance criteria:

• Unit test

• Integration test

• Documentation

• I have read the test guidelines

How to test changes / Special notes to the reviewer:
Tests should pass

[openshift-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: dharmit

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[girishramnani]

/lgtm

[openshift-bot]

/retest

Please review the full test history for this PR and help us cut down flakes.

[dharmit]

/hold

Some genuine failure with odo create --now.

[openshift-ci]

@dharmit: The following test failed, say /retest to rerun all failed tests:

Test name	Commit	Details	Rerun command
ci/prow/v4.6-integration-e2e	ccf2007	link	/test v4.6-integration-e2e

Full PR test history. Your PR dashboard.

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[girishramnani]

Any update on this PR?

[dharmit]

Closing this since it looks like a genuine usage and not duplication of code.

/close

[openshift-ci-robot]

@dharmit: Closed this PR.

In response to this:

/close

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