RFR: 8292187: aarch64: Remove duplicate header files

[Feilong Jiang]

On Wed, 10 Aug 2022 14:04:57 GMT, Andrew Haley <aph at openjdk.org> wrote:

>> It's a trivial patch that removes duplicate included header files under hotspot/cpu/aarch64.
>> 
>> aarch64 release and fastdebug build with `--disable-precompiled-headers` passed.
>
> Marked as reviewed by aph (Reviewer).

@theRealAph @nick-arm -- Thanks!

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PR: https://git.openjdk.org/jdk/pull/9821