remove 5gb wasted space by removing precompiled headers

platform/netenv.c

@@ -1,10 +1,16 @@
+#include <winsock2.h>
 #include <windows.h>
 #include <wincrypt.h>
 #include <iphlpapi.h>
+#include <iptypes.h>
+#include <winternl.h>
+#include <assert.h>
+#include <icmpapi.h>
 
 #include <stddef.h>
 #include <stdint.h>
 #include <stdlib.h>
+#include <stdio.h>
 #include <string.h>
 #include <time.h>