RFR: 8357226: Remove unnecessary List.indexOf from RepaintManager.removeInvalidComponent

[Sergey Bylokhov]

On Thu, 24 Apr 2025 09:29:24 GMT, Andrey Turbanov <aturbanov at openjdk.org> wrote:

> No need to call `List.indexOf(Object)` before `List.remove(int)`. Instead we can call `List.remove(Object)` directly. It's faster and cleaner.
> `invalidComponents` is an ArrayList.

Marked as reviewed by serb (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/24845#pullrequestreview-3018341187