Delete build-docker.sh

It depended on the remove outdated Docker file so it is also removed. See the docker dir for more up2date docker build files

build-docker.sh

@@ -1,15 +0,0 @@
-#!/bin/bash
-set -o xtrace
-
-dir=`pwd`
-echo "$dir"
-
-build_image=coturnbuild
-dockerargs="--privileged -v ${dir}:/root/coturn -w /root/coturn"
-container_env=' -e "INSIDECONTAINER=-incontainer=true"'
-docker="docker run --rm -it ${dockerargs} ${container_env} ${build_image}"
-
-docker build -f Dockerfile.build -t ${build_image} .
-
-${docker} bash -c "./configure && make"
-