pinctrl: meson: Drop unused aml_pctl_find_group_by_name()

aml_pctl_find_group_by_name() is not used anywhere, as reported by W=1
clang build:

  pinctrl-amlogic-a4.c:600:2: error: unused function 'aml_pctl_find_group_by_name' [-Werror,-Wunused-function]

Fixes: 6e9be3a ("pinctrl: Add driver support for Amlogic SoCs")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Xianwei Zhao <xianwei.zhao@amlogic.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Link: https://lore.kernel.org/20250509150114.299962-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Author: krzk

drivers/pinctrl/meson/pinctrl-amlogic-a4.c

@@ -596,20 +596,6 @@ static int aml_get_group_pins(struct pinctrl_dev *pctldev,
 	return 0;
 }
 
-static inline const struct aml_pctl_group *
-	aml_pctl_find_group_by_name(const struct aml_pinctrl *info,
-				    const char *name)
-{
-	int i;
-
-	for (i = 0; i < info->ngroups; i++) {
-		if (!strcmp(info->groups[i].name, name))
-			return &info->groups[i];
-	}
-
-	return NULL;
-}
-
 static void aml_pin_dbg_show(struct pinctrl_dev *pcdev, struct seq_file *s,
 			     unsigned int offset)
 {