update ppa script

build/bot/ppa-build.sh

@@ -2,22 +2,7 @@
 
 set -e -x
 
-echo "Hi, this is the build script."
-
 # Note: this script is meant to be run in a Debian/Ubuntu docker container,
 # as user 'root'.
 
-# Install the required tools for creating source packages.
-# apt-get -yq --no-install-suggests --no-install-recommends install\
-#     devscripts debhelper dput fakeroot
-
-# Add the SSH key of ppa.launchpad.net to known_hosts.
-# mkdir -p ~/.ssh
-#echo '|1|7SiYPr9xl3uctzovOTj4gMwAC1M=|t6ReES75Bo/PxlOPJ6/GsGbTrM0= ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEA0aKz5UTUndYgIGG7dQBV+HaeuEZJ2xPHo2DS2iSKvUL4xNMSAY4UguNW+pX56nAQmZKIZZ8MaEvSj6zMEDiq6HFfn5JcTlM80UwlnyKe8B8p7Nk06PPQLrnmQt5fh0HmEcZx+JU9TZsfCHPnX7MNz4ELfZE6cFsclClrKim3BHUIGq//t93DllB+h4O9LHjEUsQ1Sr63irDLSutkLJD6RXchjROXkNirlcNVHH/jwLWR5RcYilNX7S5bIkK8NlWPjsn/8Ua5O7I9/YoE97PpO6i73DTGLh5H9JN/SITwCKBkgSDWUt61uPK3Y11Gty7o2lWsBjhBUm2Y38CBsoGmBw==' >> ~/.ssh/known_hosts
-
-
-
-env
-
-# Build the source package and upload.
 go run build/ci.go debsrc -sftp-user geth-ci -signer "Go Ethereum Linux Builder <geth-ci@ethereum.org>"