Fix Windows build issues for libbcc.

Add unimplemented versions of dlfcn.h functions.
Remove OutputFile::CreateTemporary(), since it is unused.
Remove unnecessary includes to prevent issues with missing libraries.

Change-Id: I74bea72c8f174843e61faa8cac8bd6ae429a1bc0
diff --git a/lib/Renderscript/RSInfo.cpp b/lib/Renderscript/RSInfo.cpp
index 4aa2e69..496f739 100644
--- a/lib/Renderscript/RSInfo.cpp
+++ b/lib/Renderscript/RSInfo.cpp
@@ -17,7 +17,9 @@
 //#define LOG_NDEBUG 0
 #include "bcc/Renderscript/RSInfo.h"
 
+#if !defined(_WIN32)  /* TODO create a HAVE_DLFCN_H */
 #include <dlfcn.h>
+#endif
 
 #include <cstring>
 #include <new>