Remove unnecessary stuff from Task properties dialog

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Original report (archived issue) by Brian Gerkey (Bitbucket: Brian Gerkey, GitHub: gerkey).

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NRI tutorial users don't need VRC parameters, and we could probably hide the Network parameters, too.

[osrf-migration]

Original comment by Brian Gerkey (Bitbucket: Brian Gerkey, GitHub: gerkey).

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And perhaps hide time (or at least note how to make the timeout infinite).

[osrf-migration]

Original comment by Brian Gerkey (Bitbucket: Brian Gerkey, GitHub: gerkey).

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• set milestone to "NRI tutorial"

[osrf-migration]

Original comment by Brian Gerkey (Bitbucket: Brian Gerkey, GitHub: gerkey).

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• set assignee_account_id to "557058:2e35028e-9ad8-4d6a-a3a5-275159a304a9"
• set assignee to "gerkey (Bitbucket: gerkey, GitHub: gerkey)"

[osrf-migration]

Original comment by Hugo Boyer (Bitbucket: hugomatic, GitHub: hugomatic).

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• changed state from "new" to "resolved"