Disable video extensions to Fix Fuchsia build with 1.3.268

Change-Id: I84eb4d530e0501ea659a9a66090e1a3c971f4569
diff --git a/system/vulkan_enc/goldfish_vk_private_defs.h b/system/vulkan_enc/goldfish_vk_private_defs.h
index 0867320..27b28af 100644
--- a/system/vulkan_enc/goldfish_vk_private_defs.h
+++ b/system/vulkan_enc/goldfish_vk_private_defs.h
@@ -35,4 +35,8 @@
   return ORIGINAL_FN(std::forward<Args>(args)...); \
 }
 
+// Disabled to fix Fuchsia build with Vulkan 1.3.268
+#undef VK_KHR_video_queue
+#undef VK_KHR_video_decode_queue
+
 #endif