git: openjdk/jfx-sandbox: metal: 8315432: Remove few trivial warnings

[Ambarish Rapte]

Changeset: ef37b5c5
Author:    Ambarish Rapte <arapte at openjdk.org>
Date:      2023-08-31 10:12:53 +0000
URL:       https://git.openjdk.org/jfx-sandbox/commit/ef37b5c5a5aa138a7fb6e6c9c7b700b6f7456de6

8315432: Remove few trivial warnings

! modules/javafx.graphics/src/main/native-prism-mtl/MetalContext.h
! modules/javafx.graphics/src/main/native-prism-mtl/MetalMeshView.h
! modules/javafx.graphics/src/main/native-prism-mtl/MetalPipelineManager.m