Remove the jbuilder gem (unused)

Gemfile

@@ -14,8 +14,6 @@ gem 'uglifier', '>= 1.3.0'
 gem 'jquery-rails'
 # Turbolinks makes following links in your web application faster. Read more: https://github.com/rails/turbolinks
 gem 'turbolinks', '~> 2.5'
-# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
-gem 'jbuilder', '~> 2.0'
 # bundle exec rake doc:rails generates the API under doc/api.
 gem 'sdoc', '~> 0.4.0', group: :doc
 

Gemfile.lock

@@ -326,9 +326,6 @@ GEM
     i18n (0.7.0)
     inflecto (0.0.2)
     ipaddress (0.8.3)
-    jbuilder (2.6.1)
-      activesupport (>= 3.0.0, < 5.1)
-      multi_json (~> 1.2)
     jquery-rails (4.2.1)
       rails-dom-testing (>= 1, < 3)
       railties (>= 4.2.0)
@@ -671,7 +668,6 @@ DEPENDENCIES
   guard-rspec
   haml-rails
   hashie
-  jbuilder (~> 2.0)
   jquery-rails
   launchy
   leaflet-draw-rails