media: dvb-frontends/stv0910: remove unneeded dvb_math.h include

Since nothing from dvb_math.h is used, remove the unneeded include.
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/dvb-frontends/stv0910.c

@@ -24,7 +24,6 @@
 #include <linux/i2c.h>
 #include <asm/div64.h>
 
-#include "dvb_math.h"
 #include "dvb_frontend.h"
 #include "stv0910.h"
 #include "stv0910_regs.h"