Remove missing include.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1857 c046a42c-6fe2-441c-8c8c-71466251a162

fpu/softfloat-native.h

@@ -7,7 +7,6 @@
 #include <fenv.h>
 #endif
 #endif
-#include "gnu-c99-math.h"
 
 typedef float float32;
 typedef double float64;