Remove the simplecov gem (unused)

Gemfile

@@ -99,7 +99,6 @@ group :test do
   gem 'database_cleaner'
   gem 'webmock'
   gem 'shoulda-matchers', require: false
-  gem 'simplecov', require: false
   gem 'poltergeist'
   gem 'timecop'
   gem 'guard'

Gemfile.lock

@@ -125,7 +125,6 @@ GEM
       responders
       warden (~> 1.2.3)
     diff-lcs (1.2.5)
-    docile (1.1.5)
     domain_name (0.5.20161129)
       unf (>= 0.0.5, < 1.0.0)
     dotenv (2.2.0)
@@ -543,11 +542,6 @@ GEM
     simple_form (3.4.0)
       actionpack (> 4, < 5.1)
       activemodel (> 4, < 5.1)
-    simplecov (0.12.0)
-      docile (~> 1.1.0)
-      json (>= 1.8, < 3)
-      simplecov-html (~> 0.10.0)
-    simplecov-html (0.10.0)
     slop (3.6.0)
     smart_listing (1.2.0)
       coffee-rails
@@ -693,7 +687,6 @@ DEPENDENCIES
   sentry-raven
   shoulda-matchers
   simple_form
-  simplecov
   smart_listing
   spreadsheet_architect
   spring

spec/spec_helper.rb

@@ -19,12 +19,6 @@
 
 ENV['RAILS_ENV'] ||= 'test'
 
-if ENV['COV']
-  require 'simplecov'
-  SimpleCov.start 'rails'
-  puts "required simplecov"
-end
-
 require File.expand_path('../../config/environment', __FILE__)
 require 'rspec/rails'
 require 'capybara/rspec'