RFR: 8344066: Remove SecurityManager uses from the jdk.accessibility module [v2]

[Phil Race]

On Thu, 21 Nov 2024 15:26:32 GMT, Abhishek Kumar <abhiscxk at openjdk.org> wrote:

>> Since JEP 486 : Permanently Disable the Security Manager [JDK-8338625](https://bugs.openjdk.org/browse/JDK-8338625)
>> is now integrated, calls to java.security.AccessController.doPrivileged  and SecurityManager.checkPermission are obsolete and can be removed.
>> 
>> This PR takes care of the files in the jdk.accessibility module.
>> 
>> Tested swingset2 application with JAWS to verify a11y functionality on component. CI testing looks ok.
>
> Abhishek Kumar has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Remove SecurityException

Marked as reviewed by prr (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/22267#pullrequestreview-2451922045