git: openjdk/jdk17u-dev: 8286474: Drop --enable-preview from Sealed Classes related tests

[Goetz Lindenmaier]

Changeset: c70d9b08
Author:    Goetz Lindenmaier <goetz at openjdk.org>
Date:      2023-09-25 11:46:34 +0000
URL:       https://git.openjdk.org/jdk17u-dev/commit/c70d9b08c11a951a59db1c0ff18414b3f519c2cb

8286474: Drop --enable-preview from Sealed Classes related tests

Backport-of: d547a707bf1f9e252213fdab7eaf076b5cf884b4

! test/jdk/java/lang/reflect/sealed_classes/SealedClassesReflectionTest.java
! test/jdk/java/lang/reflect/sealed_classes/TestSecurityManagerChecks.java