Revert "Build Observatory with runtime"

runtime/observatory/maintainers/snapshot_dependencies.sh

-#!/bin/sh
-
-# This script will create a deep snapshot of all Observatory package
-# dependencies. The output will be in observatory_pub_packages which
-# then should be committed to third_party/observatory_pub_packages.
-
-
-PUBSPEC_INPUT="pubspec.template"
-PUBSPEC_OUTPUT="pubspec.yaml"
-PACKAGES_INPUT="packages"
-PACKAGES_OUTPUT="observatory_pub_packages"
-
-if [ ! -d "../maintainers" ]; then
-  echo "Please run this script from the maintainers directory"
-  exit
-fi
-
-if [ ! -f $PUBSPEC_INPUT ]; then
-  echo "Cannot find $PUBSPEC_INPUT"
-  exit
-fi
-
-# Cleanup leftovers
-rm -f $PUBSPEC_OUTPUT
-rm -rf $PACKAGES_INPUT
-rm -rf $PACKAGES_OUTPUT
-
-# Setup for pub get run
-cp $PUBSPEC_INPUT $PUBSPEC_OUTPUT
-
-# Run pub get
-pub get
-
-# Prepare for output
-mkdir $PACKAGES_OUTPUT
-
-OUTPUT_BASE=`realpath $PACKAGES_OUTPUT`
-# Copy necessary files
-pushd $PACKAGES_INPUT  > /dev/null
-for i in *; do
-  ACTUAL_PATH=`realpath $i`
-  mkdir $OUTPUT_BASE/$i
-  mkdir $OUTPUT_BASE/$i/lib
-  cp $ACTUAL_PATH/../pubspec.yaml $OUTPUT_BASE/$i/pubspec.yaml
-  rsync -Lr $ACTUAL_PATH/* $OUTPUT_BASE/$i/lib
-done
-popd > /dev/null
-
-echo '***'
-echo 'Dumping package dependencies:':
-echo ''
-echo 'dependency_overrides:'
-pushd $PACKAGES_OUTPUT > /dev/null
-for i in *; do
-  echo -e "  $i:\n    path: ../../third_party/$PACKAGES_OUTPUT/$i"
-done
-popd > /dev/null
-echo ''
-echo '***'
-echo -n 'Now run: rsync -a --delete observatory_pub_packages/ '
-echo '~/workspace/dart-third_party/observatory_pub_packages/'
-echo '***'