Remove unnecessary Gemfile.lock
Remove unnecessary Gemfile.lock

- https://thinkneardev.atlassian.net/browse/GARD-2028
- It's best practice not to commit Gemfile.lock for gems, see
  http://yehudakatz.com/2010/12/16/clarifying-the-roles-of-the-gemspec-and-gemfile/

selenetelenav/job_chains,ThinkNear/job_chains