[media] ov2659: get rid of unused values

Why to store the chosed values for prediv, postdiv and mult if
those won't be used?

drivers/media/i2c/ov2659.c: In function 'ov2659_pll_calc_params':
drivers/media/i2c/ov2659.c:912:35: warning: variable 's_mult' set but not used [-Wunused-but-set-variable]
  u32 s_prediv = 1, s_postdiv = 1, s_mult = 1;
                                   ^
drivers/media/i2c/ov2659.c:912:20: warning: variable 's_postdiv' set but not used [-Wunused-but-set-variable]
  u32 s_prediv = 1, s_postdiv = 1, s_mult = 1;
                    ^
drivers/media/i2c/ov2659.c:912:6: warning: variable 's_prediv' set but not used [-Wunused-but-set-variable]
  u32 s_prediv = 1, s_postdiv = 1, s_mult = 1;
      ^

This is likely some leftover from some past change.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

drivers/media/i2c/ov2659.c

@@ -909,7 +909,6 @@ static void ov2659_pll_calc_params(struct ov2659 *ov2659)
 	u8 ctrl1_reg = 0, ctrl2_reg = 0, ctrl3_reg = 0;
 	struct i2c_client *client = ov2659->client;
 	unsigned int desired = pdata->link_frequency;
-	u32 s_prediv = 1, s_postdiv = 1, s_mult = 1;
 	u32 prediv, postdiv, mult;
 	u32 bestdelta = -1;
 	u32 delta, actual;
@@ -929,9 +928,6 @@ static void ov2659_pll_calc_params(struct ov2659 *ov2659)
 
 				if ((delta < bestdelta) || (bestdelta == -1)) {
 					bestdelta = delta;
-					s_mult    = mult;
-					s_prediv  = prediv;
-					s_postdiv = postdiv;
 					ctrl1_reg = ctrl1[i].reg;
 					ctrl2_reg = mult;
 					ctrl3_reg = ctrl3[j].reg;