Revert "see if including cmath instead of math.h satisfies Android-ARM"

This reverts commit 6f9e272d.

A f*cking mess. See 1cdf6ade

Change-Id: Ia66edb96c9c34742300e882c2796870bfd9919d1

sal/rtl/math.cxx

@@ -32,9 +32,9 @@
 
 #include <algorithm>
 #include <cassert>
-#include <cmath>
 #include <float.h>
 #include <limits.h>
+#include <math.h>
 #include <stdlib.h>
 
 static int const n10Count = 16;