Metal: Use pipeline rasterSampleCount Use MTLRenderPipelineDescriptor rasterSampleCount instead of sampleCount. This avoids the use of the deprecation macro. Availability: iOS 8.0 (min: 15.0), mac Catalyst 13.1 (min: 16.5), macOS 10.11 (min: 10.15), tvOS 11.0 (min: 15.0), visionOS 1.0+ Bug: angleproject:360147118 Change-Id: I7009a7d7b39ecb763e23f4b97441fb45a64a891d Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/5797134 Auto-Submit: Kimmo Kinnunen <kkinnunen@apple.com> Reviewed-by: Geoff Lang <geofflang@chromium.org> Reviewed-by: Alexey Knyazev <lexa.knyazev@gmail.com> Commit-Queue: Kimmo Kinnunen <kkinnunen@apple.com>