[bootstrap] reduce dependencies to bare minimum needed for building (#2389)

script/bootstrap

@@ -41,17 +41,11 @@ install_packages_apt()
 {
     # apt update and install dependencies
     sudo apt-get update
-    sudo apt-get install -y build-essential git make autoconf \
-        autoconf-archive automake dbus libtool gcc \
-        g++ gperf flex bison texinfo ncurses-dev \
-        libexpat-dev python sed python-pip gawk \
-        libreadline6-dev libreadline6 libdbus-1-dev \
-        libboost-dev
+    sudo apt-get install automake g++ libtool make
 
     # add gcc-arm-embedded ppa
     sudo add-apt-repository -y ppa:team-gcc-arm-embedded/ppa
     sudo apt-get update
-
     sudo apt-get install gcc-arm-embedded
 }