RFR: JDK-8278273: Remove unnecessary exclusion of doclint accessibility checks

[Iris Clark]

On Sun, 5 Dec 2021 23:45:32 GMT, Joe Darcy <darcy at openjdk.org> wrote:

> Exploratory builds indicate it is not currently necessary to exclude the doclint accessibility checks; this patch enables them.
> 
> (Enabling the reference checks is left for future work.)

Marked as reviewed by iris (Reviewer).

-------------

PR: https://git.openjdk.java.net/jdk/pull/6713