add Gather facts to remove-node.yml

[ikrozhkov]

What type of PR is this?
/kind bug

What this PR does / why we need it:
If we want to remove node from cluster we should follow this guide, but because of this condition it will fail:

TASK [reset : reset | Restart network] ****************************************************************************************************************************************************************fatal: [mynode1]: FAILED! => {"msg": "The conditional check 'ansible_os_family not in ["Flatcar", "Flatcar Container Linux by Kinvolk"]' failed. The error was: error while evaluating conditional (ansible_os_family not in ["Flatcar", "Flatcar Container Linux by Kinvolk"]): 'ansible_os_family' is undefined\n\nThe error appears to be in '/data/mvp/kubespray/roles/reset/tasks/main.yml': line 384, column 3, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n\n- name: reset | Restart network\n ^ here\n"}

It happens due to the fact that we are not gathering facts about removable node. If we include this task to remove-node.yml as in this PR issue will be solved.

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

Add gather facts to remove-node playbook to prevent issue with os evaluation

[k8s-ci-robot]

Hi @ikrozhkov. Thanks for your PR.

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[cristicalin]

/retest

[cristicalin]

@ikrozhkov I think this PR needs a rebase.

[cristicalin]

Thank you for this fix @ikrozhkov !

/ok-to-test
/lgtm

[ikrozhkov]

Thank you for this fix @ikrozhkov !

/ok-to-test /lgtm

Thanks for review!

[floryut]

@ikrozhkov Thanks for the PR 👍

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: floryut, IKRozhkov

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