APPEALS-44423: Remove therubyracer and jshint gems (#21443)

Gemfile

@@ -75,8 +75,6 @@ gem "statsd-instrument"
 gem "stringex", require: false
 # catch problematic migrations at development/test time
 gem "strong_migrations"
-# execjs runtime
-gem "therubyracer", platforms: :ruby
 # print trees
 gem "tty-tree"
 gem "tzinfo", "1.2.10"
@@ -106,7 +104,6 @@ group :test, :development, :demo do
   gem "guard-rspec"
   gem "immigrant"
   # Linters
-  gem "jshint", platforms: :ruby
   gem "pluck_to_hash"
   gem "pry", "~> 0.13.0"
   # Call 'byebug' anywhere in the code to stop execution and get a debugger console

Gemfile.lock

@@ -367,10 +367,6 @@ GEM
       rails-dom-testing (>= 1, < 3)
       railties (>= 4.2.0)
       thor (>= 0.14, < 2.0)
-    jshint (1.5.0)
-      execjs (>= 1.4.0)
-      multi_json (~> 1.0)
-      therubyracer (~> 0.12.1)
     json (2.3.0)
     json_schemer (0.2.16)
       ecma-re-validator (~> 0.2)
@@ -397,7 +393,6 @@ GEM
       kramdown (~> 2.0)
     launchy (2.4.3)
       addressable (~> 2.3)
-    libv8 (3.16.14.19)
     listen (3.1.5)
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
@@ -431,7 +426,6 @@ GEM
     momentjs-rails (2.29.4.1)
       railties (>= 3.1)
     msgpack (1.4.2)
-    multi_json (1.12.2)
     multipart-post (2.1.1)
     multiverse (0.2.2)
       activerecord (>= 4.2)
@@ -564,7 +558,6 @@ GEM
       redis-store (>= 1.2, < 2)
     redis-store (1.4.1)
       redis (>= 2.2, < 5)
-    ref (2.0.0)
     regexp_parser (1.6.0)
     request_store (1.4.1)
       rack (>= 1.4)
@@ -696,9 +689,6 @@ GEM
     terminal-table (1.8.0)
       unicode-display_width (~> 1.1, >= 1.1.1)
     test-prof (0.10.1)
-    therubyracer (0.12.3)
-      libv8 (~> 3.16.14.15)
-      ref
     thor (0.20.3)
     thread_safe (0.3.6)
     tilt (2.0.8)
@@ -792,7 +782,6 @@ DEPENDENCIES
   holidays (~> 6.4)
   icalendar
   immigrant
-  jshint
   json_schemer (~> 0.2.16)
   kaminari
   knapsack_pro (~> 3.8)
@@ -849,7 +838,6 @@ DEPENDENCIES
   stringex
   strong_migrations
   test-prof
-  therubyracer
   timecop
   tty-tree
   tzinfo (= 1.2.10)