layers: Avoid calling functions not produced by the pv codegen

Still need to investigate why the generator doesn't produce everything
it should, but this should be enough to get us going.

Signed-off-by: Chris Forbes <chrisforbes@google.com>
diff --git a/layers/parameter_validation.cpp b/layers/parameter_validation.cpp
index ef7ce0d..bf7db2e 100644
--- a/layers/parameter_validation.cpp
+++ b/layers/parameter_validation.cpp
@@ -5000,7 +5000,8 @@
     skip |= require_instance_extension(physicalDevice, &instance_extension_enables::win32_enabled,
                                             "vkGetPhysicalDeviceWin32PresentationSupportKHR", VK_KHR_WIN32_SURFACE_EXTENSION_NAME);
 
-    skip |= parameter_validation_vkGetPhysicalDeviceWin32PresentationSupportKHR(physicalDevice, queueFamilyIndex);
+    // TODO: codegen doesn't produce this function?
+    //skip |= parameter_validation_vkGetPhysicalDeviceWin32PresentationSupportKHR(physicalDevice, queueFamilyIndex);
 
     if (!skip) {
         result = get_dispatch_table(pc_instance_table_map, physicalDevice)->GetPhysicalDeviceWin32PresentationSupportKHR(