[Cleanup] Removed unneeded #includes from rdr/Exception.cxx


git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@3292 3789f03b-4d11-0410-bbf8-ca57d06f2519
diff --git a/common/rdr/Exception.cxx b/common/rdr/Exception.cxx
index a0a08f0..72a03e1 100644
--- a/common/rdr/Exception.cxx
+++ b/common/rdr/Exception.cxx
@@ -22,11 +22,10 @@
 #include <windows.h>
 #endif
 
-#include <string.h>
-#include <stdarg.h>
-#include <stdio.h>
 #include <os/print.h>
 
+#include <string.h>
+
 using namespace rdr;
 
 Exception::Exception(const char *format, ...) {