remove unnecessary code processing the soapysdr string

not sure why this was ever necessary, remove it

should also fix SOAPYSDR using a serial with a space in it
not really a common use case but still

Author: wiedehopf

rootfs/etc/s6-overlay/scripts/01-acarsdec

@@ -54,11 +54,6 @@ if [[ -z "${SOAPYSDR}" ]] && [[ -z "${RTL_SERIAL}" ]] && [[ -z "${SERIAL}" ]] ;
     "${s6wrap[@]}" echo "Either RTL_SERIAL or SOAPYSDR must be set, exiting"
 fi
 
-if [[ -n "${SOAPYSDR}" ]]; then
-    sed -i "s/SOAPYSDR=\"\"/SOAPYSDR=\"$SOAPYSDR\"/g" /etc/s6-overlay/scripts/acarsdec
-fi
-
-
 mkdir -p /run/acars
 touch /run/acars/acars.past5min.json
 

rootfs/etc/s6-overlay/scripts/acarsdec

@@ -6,8 +6,6 @@ source /scripts/common
 
 ACARS_BIN="/usr/local/bin/acarsdec"
 # shellcheck disable=SC2001
-SOAPYSDR=""
-
 FREQ_STRING=""
 
 ACARS_CMD=("-i" "$FEED_ID")
@@ -40,9 +38,7 @@ fi
 
 # loop through the SOAPYSDR string and split on spaces
 if [[ -n "${SOAPYSDR}" ]]; then
-	IFS=' ' read -ra SOAPYSDR_PROCESSED <<< "${SOAPYSDR}"
-	# ACARS_CMD+=("${SOAPYSDR_PROCESSED[@]}") # used for acarsdec < 4.0
-	ACARS_CMD+=("--soapysdr" "${SOAPYSDR_PROCESSED[@]}")
+	ACARS_CMD+=("--soapysdr" "${SOAPYSDR}")
 	if [[ ${SOAPYSDR} == *"airspy"* ]] && [[ -z "${RTLMULT}" ]]; then
 		# airspy runs at 3MSPS so needs a different sample rate multiplier
 		RTLMULT="240"