staging: android: persistent_ram: Remove never used struct persistent_ram_zone members

Remove 'old_log_footer_size' and 'early' members of struct
persistent_ram_zone, as these were never used at all.
Signed-off-by: NAnton Vorontsov <anton.vorontsov@linaro.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/android/persistent_ram.h

@@ -59,8 +59,6 @@ struct persistent_ram_zone {
 
 	char *old_log;
 	size_t old_log_size;
-	size_t old_log_footer_size;
-	bool early;
 };
 
 int persistent_ram_early_init(struct persistent_ram *ram);