Remove legacyMode for runner status in graphql fragments

What does this MR do and why?

Code cleanup following Remove legacy mode for runnner graphql status (!117886 - merged)

In Remove legacy mode for runnner graphql status (!117886 - merged) we make this parameter no-op, this MR removes it from the FE.

This should only be merged after Remove legacy mode for runnner graphql status (!117886 - merged) is in workflowproduction.

Part of #344648 (closed)

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