core: remove deprecated --scrypt option.

sgminer.c

@@ -947,12 +947,6 @@ static char *set_null(const char __maybe_unused *arg)
 	return NULL;
 }
 
-static char *deprecated_scrypt(void *arg)
-{
-	applog(LOG_WARNING, "Option --scrypt is deprecated and will be removed in future versions. Remove it from your launch scripts.");
-	return NULL;
-}
-
 /* These options are available from config file or commandline */
 static struct opt_table opt_config_table[] = {
 	OPT_WITH_ARG("--api-allow",
@@ -1160,9 +1154,6 @@ static struct opt_table opt_config_table[] = {
 	OPT_WITH_ARG("--sched-stop",
 		     set_schedtime, NULL, &schedstop,
 		     "Set a time of day in HH:MM to stop mining (will quit without a start time)"),
-	OPT_WITHOUT_ARG("--scrypt",
-			deprecated_scrypt, NULL,
-			"Use the scrypt algorithm for mining (DEPRECATED)"),
 	OPT_WITH_ARG("--shaders",
 		     set_shaders, NULL, NULL,
 		     "GPU shaders per card for tuning scrypt, comma separated"),