Drop some unused header includes
tree46ea558c77cf4ac8785fd973f32b33dd7a2b7406
-rw-r--r-- 4341 .clang-format
-rw-r--r-- 53 .gitignore
-rw-r--r-- 3818 .travis.yml
-rw-r--r-- 908 README
-rw-r--r-- 1833 Vagrantfile
-rwxr-xr-x 25550 bootstrap
drwxr-xr-x - config
drwxr-xr-x - patches
drwxr-xr-x - xapian-applications
drwxr-xr-x - xapian-bindings
drwxr-xr-x - xapian-core
drwxr-xr-x - xapian-data
drwxr-xr-x - xapian-letor
drwxr-xr-x - xapian-maintainer-tools