power: supply: ab8500: remove unused struct 'inst_curr_result_list'

'inst_curr_result_list' is unused since the original
commit 13151631 ("ab8500-fg: A8500 fuel gauge driver").

Remove it.
Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20240528000634.196707-3-linux@treblig.orgSigned-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>

drivers/power/supply/ab8500_fg.c

@@ -149,11 +149,6 @@ struct ab8500_fg_flags {
 	bool batt_id_received;
 };
 
-struct inst_curr_result_list {
-	struct list_head list;
-	int *result;
-};
-
 /**
  * struct ab8500_fg - ab8500 FG device information
  * @dev:		Pointer to the structure device