Vulkan: Prefer monolithic pipelines everywhere Apparently, every vendor prefers this, and graphicsPipelineLibraryFastLinking has no bearing on the driver's preference. Bug: angleproject:42265839 Change-Id: Ied8d82e0a9e08fe5efe3f625e2612764f67f9768 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/5861024 Commit-Queue: Yuxin Hu <yuxinhu@google.com> Reviewed-by: Yuxin Hu <yuxinhu@google.com> Auto-Submit: Shahbaz Youssefi <syoussefi@chromium.org>