git: openjdk/jdk: 8282462: Remove unnecessary use of @SuppressWarnings("preview")

[Joe Darcy]

Changeset: 9d9618a3
Author:    Joe Darcy <darcy at openjdk.org>
Date:      2022-02-28 22:14:14 +0000
URL:       https://git.openjdk.java.net/jdk/commit/9d9618a3dd29cb9328a7275375e04eca2af20a93

8282462: Remove unnecessary use of @SuppressWarnings("preview")

Reviewed-by: vromero

! src/java.compiler/share/classes/javax/lang/model/element/ElementKind.java
! src/java.compiler/share/classes/javax/lang/model/util/AbstractElementVisitor6.java
! src/java.compiler/share/classes/javax/lang/model/util/ElementFilter.java
! src/java.compiler/share/classes/javax/lang/model/util/ElementKindVisitor6.java