[script] remove openthread bootstrapping step

Dockerfile

@@ -12,7 +12,6 @@ RUN apt-get update && \
       && rm -rf /var/lib/apt/lists/*
 
 # Copy scripts
-COPY ./openthread/script ./openthread/script
 COPY  ./script/bootstrap \
       ./script/bootstrap_silabs \
       ./script/
@@ -21,8 +20,6 @@ COPY ./requirements.txt .
 # Bootstrap
 RUN ./script/bootstrap packages && rm -rf /var/lib/apt/lists/*
 
-RUN ./script/bootstrap openthread && rm -rf /var/lib/apt/lists/*
-
 # Label the build date before downloading slc to force slc to always be download during a docker build
 ARG BUILD_DATE
 LABEL build_date=${BUILD_DATE}

script/bootstrap

@@ -125,12 +125,6 @@ install_packages()
     fi
 }
 
-do_bootstrap_openthread()
-{
-    echo "Bootstrapping openthread"
-    "${repo_dir}"/openthread/script/bootstrap
-}
-
 do_bootstrap_silabs()
 {
     echo "Bootstrapping silabs"
@@ -174,21 +168,18 @@ main()
 {
     if [ $# == 0 ]; then
         install_packages
-        do_bootstrap_openthread
         do_bootstrap_silabs
     elif [ "$1" == 'packages' ]; then
         install_packages
     elif [ "$1" == 'arm_toolchain' ]; then
         shift 1
         install_arm_toolchain "$@"
-    elif [ "$1" == 'openthread' ]; then
-        do_bootstrap_openthread
     elif [ "$1" == 'python' ]; then
         install_packages_pip3
     elif [ "$1" == 'silabs' ]; then
         do_bootstrap_silabs
     else
-        echo >&2 "Unsupported action: $1. Supported: openthread, silabs"
+        echo >&2 "Unsupported action: $1. Supported: packages, arm_toolchain, python, silabs"
         # 128 for Invalid arguments
         exit 128
     fi