ASoC: rl6231: remove never matched if condition

(in_t < 0) will never be true since in_t is unsigned.
Signed-off-by: Bard Liao <bardliao@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/rl6231.c

@@ -178,8 +178,6 @@ int rl6231_pll_calc(const unsigned int freq_in,
 		for (n_t = 0; n_t <= max_n; n_t++) {
 			in_t = f_in * (n_t + 2);
 			pll_out = f_out * (k_t + 2);
-			if (in_t < 0)
-				continue;
 			if (in_t == pll_out) {
 				bypass = true;
 				n = n_t;