snmpapi: Use --prefer-native instead of DLL_WINE_PREATTACH.

Signed-off-by: Alexandre Julliard <julliard@winehq.org>

dlls/snmpapi/Makefile.in

@@ -1,7 +1,7 @@
 MODULE    = snmpapi.dll
 IMPORTLIB = snmpapi
 
-EXTRADLLFLAGS = -mno-cygwin
+EXTRADLLFLAGS = -mno-cygwin -Wb,--prefer-native
 
 C_SRCS = \
 	main.c

dlls/snmpapi/main.c

@@ -123,8 +123,6 @@ BOOL WINAPI DllMain(
     TRACE("(%p,%d,%p)\n", hInstDLL, fdwReason, lpvReserved);
 
     switch(fdwReason) {
-    case DLL_WINE_PREATTACH:
-        return FALSE;  /* prefer native version */
     case DLL_PROCESS_ATTACH:
         DisableThreadLibraryCalls(hInstDLL);
         startTime = GetTickCount64();