Avoid KernelManager.pre_start_kernel. Use kernel spec for the REPL instead.#1927

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devdanzin:avoid_pre_start_kernel_2

Commits on Dec 15, 2021

Create and use kernel spec for the REPL.
devdanzin
committed

Commits on Dec 16, 2021

Fix make_kernel_spec to create whole path, avoid failing test on spec removal.
devdanzin
committed