Revert "vk_platform: Fix incorrect type for MVK debug flag. (shadps4-…

…emu#1993)"

This reverts commit 927dc6d.

src/video_core/renderer_vulkan/vk_platform.cpp

@@ -283,9 +283,6 @@ vk::UniqueInstance CreateInstance(Frontend::WindowSystemType window_type, bool e
         Common::FS::GetUserPathString(Common::FS::PathType::LogDir);
     const char* log_path = crash_diagnostic_path.c_str();
     vk::Bool32 enable_force_barriers = vk::True;
-#ifdef __APPLE__
-    const vk::Bool32 mvk_debug_mode = enable_crash_diagnostic ? vk::True : vk::False;
-#endif
 
     const std::array layer_setings = {
         vk::LayerSettingEXT{
@@ -359,7 +356,7 @@ vk::UniqueInstance CreateInstance(Frontend::WindowSystemType window_type, bool e
             .pSettingName = "MVK_CONFIG_DEBUG",
             .type = vk::LayerSettingTypeEXT::eBool32,
             .valueCount = 1,
-            .pValues = &mvk_debug_mode,
+            .pValues = &enable_crash_diagnostic,
         }
 #endif
     };