Remove start pose from isar missions

[Eddasol]

Will break if a isar-"robot" package has "localize" in capability list. Depends on this: equinor/isar-robot#200

Ready for review checklist:

• A self-review has been performed
• All commits run individually
• Temporary changes have been removed, like console.log, TODO, etc.
• The PR has been tested locally
• A test have been written
  • This change doesn't need a new test
• Relevant issues are linked
• Remaining work is documented in issues
  • There is no remaining work from this PR that require new issues
• The changes does not introduce dead code as unused imports, functions etc.

[github-actions]

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[andchiind]

LGTM