Don't auto append value of stringified enums

Since vulkan.hpp was updated to do this for us, we should stop
outputting this number while in debug mode.

Bug: b/170962162
Change-Id: I1d813d69db4a73c71383fc54bc129e2768d5be60
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/50309
Kokoro-Result: kokoro <noreply+kokoro@google.com>
Tested-by: Sean Risser <srisser@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>
diff --git a/src/Vulkan/VkStringify.cpp b/src/Vulkan/VkStringify.cpp
index 9fdeb49..e2007ce 100644
--- a/src/Vulkan/VkStringify.cpp
+++ b/src/Vulkan/VkStringify.cpp
@@ -22,11 +22,6 @@
 #define VULKAN_HPP_NAMESPACE vkhpp
 #include <vulkan/vulkan.hpp>
 
-#include <iostream>
-#include <map>
-#include <sstream>
-#include <string>
-
 namespace vk {
 
 std::string Stringify(VkStructureType value)
@@ -51,9 +46,8 @@
 			ret = vkhpp::to_string(static_cast<vkhpp::StructureType>(value));
 			break;
 	}
-	std::ostringstream stringStream;
-	stringStream << ret << " (" << static_cast<int>(value) << ")";
-	return stringStream.str();
+
+	return ret;
 #else
 	return std::to_string(static_cast<int>(value));
 #endif