rails/arel — pull request #217 by frodsan (2013-11-11 06:08:58+00:00)
Title: Remove deleted file by 9cbfc8 from gemspec

It removes this warning:

```
arel at /Users/frodsan/Code/arel did not have a valid gemspec.
This prevents bundler from installing bins or native extensions, but that may not affect its functionality.
The validation message from Rubygems was:
["test/test_activerecord_compat.rb"] are not files
```