Remove RSpec from Rakefile, as there are no tests
Remove RSpec from Rakefile, as there are no tests

Rspec isn't included in the Gemspec, and there are no tests, so removing
this allows for `rake install` to function properly.

When tests are being written:

1. Revert this commit
2. Add rspec added to the Gemspec

evertrue/evertrue_app_assets