Remove experimental fork mode

src/kemal.cr

@@ -9,9 +9,6 @@ at_exit do
     opts.on("-e ", "--environment ", "environment") do |env|
       Kemal.config.env = env
     end
-    opts.on("-w VALUE", "--workers", "workers") do |workers|
-      Kemal.config.workers = workers.to_i
-    end
   end
 
   config = Kemal.config
@@ -39,11 +36,5 @@ at_exit do
     File.read(file_path)
   end
 
-  workers = Kemal.config.workers
-  if workers > 1
-    logger.write "Kemal is starting with #{workers} workers!"
-    server.listen_fork workers: workers
-  else
   server.listen
 end
-end

src/kemal/config.cr

@@ -4,12 +4,11 @@ module Kemal
   class Config
     INSTANCE = Config.new
     HANDLERS = [] of HTTP::Handler
-    property ssl, port, env, workers, public_folder
+    property ssl, port, env, public_folder
 
     def initialize
       @port = 3000
       @env = "development" unless @env
-      @workers = 1
       @public_folder = "./public"
       read_file
     end