chore: removed unused require(s) (#700)

Author: David-Klemenc

lib/mix/tasks/openapi.spec.json.ex

@@ -29,7 +29,6 @@ defmodule Mix.Tasks.Openapi.Spec.Json do
   * `--filename` - The output filename (defaults to "#{@default_filename}")
   """
   use Mix.Task
-  require Mix.Generator
 
   @impl true
   def run(argv) do

lib/mix/tasks/openapi.spec.yaml.ex

@@ -26,7 +26,6 @@ defmodule Mix.Tasks.Openapi.Spec.Yaml do
   * `--filename` - The output filename (defaults to "#{@default_filename}")
   """
   use Mix.Task
-  require Mix.Generator
 
   @dialyzer {:nowarn_function, encoder: 0}
 

lib/open_api_spex/export_spec.ex

@@ -2,7 +2,6 @@ defmodule OpenApiSpex.ExportSpec do
   @moduledoc """
   Export spec in specified encoding
   """
-  require Mix.Generator
 
   defmodule Options do
     @moduledoc false