Remove separate installation of charlock_holmes.

.travis.yml

@@ -9,7 +9,6 @@ env:
     - TASK=jasmine:ci
 before_install:
   - sudo apt-get install libicu-dev -y
-  - gem install charlock_holmes -v="0.6.9"
 branches:
   only:
     - 'master'

doc/install/installation.md

@@ -265,8 +265,6 @@ Make sure to edit both `gitlab.yml` and `unicorn.rb` to match your setup.
 
     cd /home/git/gitlab
 
-    sudo gem install charlock_holmes --version '0.6.9.4'
-
     # For MySQL (note, the option says "without ... postgres")
     sudo -u git -H bundle install --deployment --without development test postgres aws