ASoC: codecs: wcd938x: Drop unused num_ports field

The driver does not use few 'num_ports' in 'struct wcd938x_sdw_priv'.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://msgid.link/r/20240612-asoc-wcd9xxx-wide-cleanups-v1-19-0d15885b2a06@linaro.orgSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/wcd938x.h

@@ -652,7 +652,6 @@ struct wcd938x_sdw_priv {
 	const struct wcd938x_sdw_ch_info *ch_info;
 	bool port_enable[WCD938X_MAX_SWR_CH_IDS];
 	int active_ports;
-	int num_ports;
 	bool is_tx;
 	struct wcd938x_priv *wcd938x;
 	struct irq_domain *slave_irq;