Remove the 2MHz demodulator.

Now that the 2.4MHz demodulator does 3A/C there's no real reason
to keep the old demodulator around.

debian/config-template

@@ -31,9 +31,6 @@ GAIN=
 # RTLSDR frequency correction in PPM
 PPM=
 
-# If yes, enable sampling at 2.4MHz. Otherwise, 2.0MHz is used.
-OVERSAMPLE=
-
 #
 # Decoding options
 #

debian/dump1090-mutability.config

@@ -23,7 +23,6 @@ if [ -e $CONFIGFILE ]; then
   db_set $NAME/rtlsdr-device "$DEVICE"
   db_set $NAME/rtlsdr-gain "$GAIN"
   db_set $NAME/rtlsdr-ppm "$PPM"
-  db_set_yn $NAME/rtlsdr-oversample "$OVERSAMPLE"
 
   db_set_yn $NAME/decode-fixcrc "$FIX_CRC"
   db_set $NAME/decode-lat "$LAT"
@@ -199,7 +198,6 @@ db_go || true; db_get $NAME/auto-start; if [ "$RET" = "true" ]; then
   # only if a real device was chosen:
   db_input_verify medium $NAME/rtlsdr-gain is_valid_gain || true
   db_input_verify medium $NAME/rtlsdr-ppm is_signed_int || true
-  db_input low $NAME/rtlsdr-oversample || true
  fi
 
  db_input low $NAME/decode-fix-crc || true

debian/dump1090-mutability.init

@@ -56,7 +56,6 @@ case "x$GAIN" in
  *) ARGS="$ARGS --gain $GAIN" ;;
 esac
 if [ -n "$PPM" ]; then ARGS="$ARGS --ppm $PPM"; fi
-if [ "x$OVERSAMPLE" = "xyes" ]; then ARGS="$ARGS --oversample"; fi
 
 # decoder:
 if [ "x$FIX_CRC" = "xyes" ]; then ARGS="$ARGS --fix"; fi

debian/dump1090-mutability.postinst

@@ -75,7 +75,6 @@ case "$1" in
         subvar rtlsdr-device DEVICE
         subvar rtlsdr-gain GAIN
         subvar rtlsdr-ppm PPM
-        subvar_yn rtlsdr-oversample OVERSAMPLE
         subvar_yn decode-fixcrc FIX_CRC
         subvar decode-lat LAT
         subvar decode-lon LON

debian/dump1090-mutability.templates

@@ -53,14 +53,6 @@ Description: RTL-SDR frequency correction, in PPM:
 Type: string
 Default: 0
 
-Template: dump1090-mutability/rtlsdr-oversample
-Description: Enable oversampling at 2.4MHz?
- Originally, dump1090 would decode incoming signals by sampling at 2MHz. Newer
- versions also support sampling at 2.4MHz. This may increase the number of
- decodable messages, but takes slightly more CPU and is not as well tested.
-Type: boolean
-Default: true
-
 Template: dump1090-mutability/decode-fixcrc
 Description: Fix detected CRC errors?
  dump1090 can fix unambiguous single-bit CRC errors detected in received