RFR: 8267935: Replace BasicHashtable and Hashtable

[Robbin Ehn]

On Sat, 28 Jan 2023 18:32:31 GMT, Afshin Zafari <duke at openjdk.org> wrote:

> ### Description
> Hashtable class to be replaced with ResourceHashtable class in all source code.
> 
> ### Patch 
> The only instance was `#include "hashtable.hpp"` in `jvmtiTagMapTable.cpp` and removed.
> The corresponding files (`hashtable.hpp`, `hashtable.inline.hpp` and `hashtable.cpp`) are removed too.
> 
> ### Test
> mach5 tier1 all platforms.

Thank you!

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Marked as reviewed by rehn (Reviewer).

PR: https://git.openjdk.org/jdk/pull/12275