Remove dead code from couch_file

This code was left over after removing 8kB read-ahead

https://github.com/apache/couchdb-couch/pull/223/commits/d52a5335d930d11ade4953c8576d22f55872ff6f

COUCHDB-3284
1 file changed
tree: eca06ef55b69a940cf803814f0e17163635963a5
  1. include/
  2. priv/
  3. src/
  4. test/
  5. .gitignore
  6. .travis.yml
  7. LICENSE
  8. rebar.config.script