layers: Removed unused macro in swapchain
layers: Removed unused macro in swapchain

LOG_PERF_WARNING was not used.

Change-Id: I89f84611b37a809493e3d23c53809263d48b3065

KhronosGroup/Vulkan-Tools,KhronosGroup/Vulkan-Tools,KhronosGroup/Vulkan-Tools,KhronosGroup/Vulkan-Tools