Revert "Thunks/vulkan: Disable support for debug extensions as they require callback support"

This reverts commit c04d2409da.

ThunkLibs/libvulkan/Host.cpp

@@ -12,7 +12,6 @@ $end_info$
 
 #include "common/Host.h"
 
-#include <algorithm>
 #include <cstring>
 #include <mutex>
 #include <unordered_map>
@@ -74,18 +73,6 @@ static void FEXFN_IMPL(vkFreeMemory)(VkDevice a_0, VkDeviceMemory a_1, const VkA
   LDR_PTR(vkFreeMemory)(a_0, a_1, nullptr);
 }
 
-static VkResult FEXFN_IMPL(vkEnumerateInstanceExtensionProperties)(const char* a_0, uint32_t* a_1, VkExtensionProperties* a_2) {
-  auto ret = LDR_PTR(vkEnumerateInstanceExtensionProperties)(a_0, a_1, a_2);
-  if (a_2) {
-    const auto end = a_2 + *a_1;
-    auto it = std::remove_if(a_2, end, [](const VkExtensionProperties& prop) { return strcmp(prop.extensionName, "VK_EXT_debug_report") == 0 || strcmp(prop.extensionName, "VK_EXT_debug_utils") == 0; });
-    // Replace by dummy entry and reduce extension count
-    std::fill(it, end, VkExtensionProperties {});
-    *a_1 -= (end - it);
-  }
-  return ret;
-}
-
 static PFN_vkVoidFunction FEXFN_IMPL(vkGetDeviceProcAddr)(VkDevice a_0, const char* a_1) {
   // Just return the host facing function pointer
   // The guest will handle mapping if this exists