Revert "Add unit and lint test in travis"

[fmuyassarov]

1. This reverts Add unit and lint test in travis #862 as Prow cluster is back on track and disables unit & linting test.
2. Fixes shellcheck issue in the existing scripts

[fmuyassarov]

/hold

[fmuyassarov]

I noticed unrelated shellcheck failure, it seems while Prow was down we missed a bug related to shell linting. I will fix the issue in this PR if that's okay.

+ IS_CONTAINER=TRUE
+ CONTAINER_RUNTIME=podman
+ '[' TRUE '!=' false ]
+ TOP_DIR=.
+ find . '(' -path ./vendor -prune ')' -o -name '*.sh' -exec shellcheck -s bash '{}' +

In ./tools/deploy.sh line 21:
IRONIC_HOST="${IRONIC_HOST}"
^---------^ SC2269: This variable is assigned to itself, so the assignment does nothing.


In ./tools/deploy.sh line 22:
IRONIC_HOST_IP="${IRONIC_HOST_IP}"
^------------^ SC2269: This variable is assigned to itself, so the assignment does nothing.

For more information:
  https://www.shellcheck.net/wiki/SC2269 -- This variable is assigned to itse...

[fmuyassarov]

I noticed unrelated shellcheck failure, it seems while Prow was down we missed a bug related to shell linting. I will fix the issue in this PR if that's okay.

Actually by looking at the history we have this issue for a quite long time, not sure why shellcheck started complaining only now.

[fmuyassarov]

/test-integration

[fmuyassarov]

/test-integration

[fmuyassarov]

/unhold

[kashifest]

/lgtm

[fmuyassarov]

/cc @maelk

[smoshiur1237]

Looks good to me.

[s3rj1k]

/lgtm

[metal3-io-bot]

@s3rj1k: adding LGTM is restricted to approvers and reviewers in OWNERS files.

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/lgtm

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[s3rj1k]

/approve

[fmuyassarov]

/cc @zaneb @dhellmann

[namnx228]

LGTM

[dtantsur]

/approve

[metal3-io-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: dtantsur, fmuyassarov, s3rj1k

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