RFR: 8342653: Fix minor doc issues in AnnotatedElement

[Jaikiran Pai]

On Sun, 20 Oct 2024 22:17:38 GMT, Joe Darcy <darcy at openjdk.org> wrote:

> Fix typo and remove redundant `@since` tags.

This looks OK to me. The class itself is commented with `@since 1.5`, so removing it from methods which were introduced in the same release looks correct.

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Marked as reviewed by jpai (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/21597#pullrequestreview-2380789181