Revert "Merge branch 'alamouda/adding-external-indexes'"

This reverts commit 50c09981d993ca75c316b388041f0a497efeff86, reversing
changes made to 7ec10c1640fd072cabc985dc42c2b176a0439ddf.
13 files changed
tree: 7eac5011d87cc822986f9810662da7d96bb22034
  1. .gitignore
  2. algebricks/
  3. hivesterix/
  4. hyracks/
  5. pom.xml
  6. pregelix/