git: openjdk/jdk21u-dev: master: 8316693: Simplify at-requires checkDockerSupport()

[Goetz Lindenmaier]

Changeset: d4797b71
Author:    Goetz Lindenmaier <goetz at openjdk.org>
Date:      2024-01-08 09:22:39 +0000
URL:       https://git.openjdk.org/jdk21u-dev/commit/d4797b711e7666ebd7d0ef77ebfb2d94cd183c8d

8316693: Simplify at-requires checkDockerSupport()

Backport-of: 16fd43c5eb0fb18e93f00b5817d368df5afad969

! test/jtreg-ext/requires/VMProps.java