RFR: 8261250: Dependencies: Remove unused dependency types

[Tobias Hartmann]

On Fri, 5 Feb 2021 17:58:06 GMT, Vladimir Ivanov <vlivanov at openjdk.org> wrote:

> Remove support of unused dependency types from Dependencies.
> 
> Testing: 
> - [x] hs-precheckin-comp, hs-tier1, hs-tier2.

Nice cleanup, looks good!

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Marked as reviewed by thartmann (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/2431