Revert "Add custom liquid and service files and updated docker"

This reverts commit 021f27d62e.

Dockerfile

@@ -37,9 +37,6 @@ WORKDIR /op25
 # Run the install script to set up op25
 RUN ./install.sh -f
 
-# Update the liquid file
-COPY op25.liq /op25/op25.liq
-
 # Install Python dependencies
 COPY requirements.txt /tmp/requirements.txt
 RUN pip3 install --no-cache-dir -r /tmp/requirements.txt

op25.liq

@@ -1,54 +0,0 @@
-#!/usr/bin/liquidsoap
-
-# Example liquidsoap streaming from op25 to icecast
-# (c) 2019-2021 gnorbury@bondcar.com, wllmbecks@gmail.com
-#
-
-set("log.stdout", true)
-set("log.file", false)
-set("log.level", 1)
-
-# Make the native sample rate compatible with op25
-set("frame.audio.samplerate", 8000)
-
-input = mksafe(input.external(buffer=0.25, channels=2, samplerate=8000, restart_on_error=false, "./audio.py -x 1.5 -s"))
-# Consider increasing the buffer value on slow systems such as RPi3. e.g. buffer=0.25
-# Longer buffer results in less choppy audio but at the expense of increased latency.
-
-
-# OPTIONAL AUDIO SIGNAL PROCESSING BLOCKS 
-# Uncomment to enable
-#
-# High pass filter
-#input = filter.iir.butterworth.high(frequency = 200.0, order = 4, input)
-
-# Low pass filter
-#input = filter.iir.butterworth.low(frequency = 3250.0, order = 4, input)
-
-# Compression
-input = compress(input, attack = 2.0, gain = 0.0, knee = 13.0, ratio = 2.0, release = 12.3, threshold = -18.0)
-
-# Normalization
-input = normalize(input, gain_max = 6.0, gain_min = -6.0, target = -16.0, threshold = -65.0)
-
-
-# LOCAL AUDIO OUTPUT
-# Uncomment the appropriate line below to enable local sound
-#
-# Default audio subsystem
-#out (input)
-#
-# PulseAudio
-#output.pulseaudio(input)
-#
-# ALSA
-#output.alsa(input)
-
-
-
-# ICECAST STREAMING
-# Uncomment to enable output to an icecast server
-# Change the "host", "password", and "mount" strings appropriately first!
-# For metadata to work properly, the host address given here MUST MATCH the address in op25's meta.json file
-#
-output.icecast(%mp3(bitrate=16, samplerate=22050, stereo=false), description="op25", genre="Public Safety", url="", fallible=false, host="localhost", port=8000, mount="mountpoint", password="hackme", mean(input))