drop listen gem

Gemfile

@@ -121,7 +121,7 @@ end
 
 group :development do
   gem 'web-console'
-  gem 'listen'
+  # gem 'listen'
   gem 'bullet'
   gem 'rack-mini-profiler'
   gem 'memory_profiler'

Gemfile.lock

@@ -1417,9 +1417,6 @@ GEM
     language_filter (0.3.01)
     libv8-node (16.10.0.0)
     libv8-node (16.10.0.0-x86_64-linux)
-    listen (3.7.1)
-      rb-fsevent (~> 0.10, >= 0.10.3)
-      rb-inotify (~> 0.9, >= 0.9.10)
     loofah (2.15.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
@@ -1543,9 +1540,6 @@ GEM
       rake (>= 0.13)
       thor (~> 1.0)
     rake (13.0.6)
-    rb-fsevent (0.11.0)
-    rb-inotify (0.10.1)
-      ffi (~> 1.0)
     react-rails (2.6.1)
       babel-transpiler (>= 0.7.0)
       connection_pool
@@ -1689,7 +1683,6 @@ DEPENDENCIES
   ibm_watson
   image_processing
   language_filter
-  listen
   material_icons
   medium-editor-rails
   memory_profiler

config/environments/development.rb

@@ -57,7 +57,7 @@ Rails.application.configure do
 
   # Use an evented file watcher to asynchronously detect changes in source code,
   # routes, locales, etc. This feature depends on the listen gem.
-  config.file_watcher = ActiveSupport::EventedFileUpdateChecker
+  # config.file_watcher = ActiveSupport::EventedFileUpdateChecker
 
   # Set test-mode Stripe API key
   Stripe.api_key = "sk_test_v37uWbseyPct6PpsfjTa3y1l"