vulkan: Update from version 0.198.0 to 0.200.0

Change-Id: I071a9143332dd8b8c2ef899105073ed8791fc5db
(cherry picked from commit 9568691bea351152b340c0cbb3d31e5246ac469b)
diff --git a/vulkan/libvulkan/loader.h b/vulkan/libvulkan/loader.h
index bf71c8f..5765d65 100644
--- a/vulkan/libvulkan/loader.h
+++ b/vulkan/libvulkan/loader.h
@@ -20,7 +20,7 @@
 #define VK_PROTOTYPES
 #define VK_USE_PLATFORM_ANDROID_KHR
 #include <vulkan/vulkan.h>
-#include <vulkan/vk_ext_android_native_buffer.h>
+#include <vulkan/vk_android_native_buffer.h>
 
 namespace vulkan {
 
@@ -105,8 +105,6 @@
     PFN_vkDestroyImageView DestroyImageView;
     PFN_vkCreateShaderModule CreateShaderModule;
     PFN_vkDestroyShaderModule DestroyShaderModule;
-    PFN_vkCreateShader CreateShader;
-    PFN_vkDestroyShader DestroyShader;
     PFN_vkCreatePipelineCache CreatePipelineCache;
     PFN_vkDestroyPipelineCache DestroyPipelineCache;
     PFN_vkGetPipelineCacheData GetPipelineCacheData;