Remove hooks/, leftovers from the old svn repository

164fdef2-17b2-11e4-8c79-c80aa9e67bbd
Remove tags/, unused since 2004

bd7cb024-17b2-11e4-b3c8-c80aa9e67bbd
Remove branches/, old obsolete branches with nothing valuable

f8ea7780-17b3-11e4-89a3-c80aa9e67bbd
Remove import/

In the old svn days, this directory was used to import other svn
repositories. Hasn't been used since I converted the repo to Git on
2009-10-13.

6a83937a-17b6-11e4-a26c-c80aa9e67bbd
Merge branch 'remove-old-svn-stuff'

* remove-old-svn-stuff:
  Remove import/
  Remove branches/, old obsolete branches with nothing valuable
  Remove tags/, unused since 2004
  Remove hooks/, leftovers from the old svn repository

3a63167e-17b7-11e4-8b23-c80aa9e67bbd