RFR: 8318601: Remove javadoc text about restricted methods

[Alan Bateman]

On Fri, 20 Oct 2023 13:59:16 GMT, Maurizio Cimadamore <mcimadamore at openjdk.org> wrote:

> This simple PR removes the extra verbiage from the javadoc of all the restricted methods.
> Since now javadoc will automatically generate better "bubbles" for restricted methods, this wording is no longer necessary.

Marked as reviewed by alanb (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/16287#pullrequestreview-1690164559