remove overlay

README.md

@@ -18,18 +18,7 @@ MimeMagic.by_magic(File.open('test.html'))
 # etc...
 ```
 
-Extra magic overlay
-=====
-
-Microsoft Office 2007+ formats (xlsx, docx, and pptx) are not supported by the mime database at freedesktop.org. These files are all zipped collections of xml files and will be detected as "application/zip". Mimemagic comes with extra magic you can overlay on top of the defaults to correctly detect these file types. Enable it like this:
-
-```ruby
-require 'mimemagic'
-require 'mimemagic/overlay'
-MimeMagic.by_magic(File.open('test.xlsx'))
-```
-
-You can add your own magic with `MimeMagic.add`. See `lib/mimemagic/overlay.rb`.
+You can add your own magic with `MimeMagic.add`.
 
 API
 ===

lib/mimemagic/overlay.rb

-# frozen_string_literal: true
-# Extra magic
-
-[['application/vnd.openxmlformats-officedocument.presentationml.presentation', [[0, "PK\003\004", [[0..5000, '[Content_Types].xml', [[0..5000, 'ppt/']]]]]]],
- ['application/vnd.openxmlformats-officedocument.spreadsheetml.sheet', [[0, "PK\003\004", [[0..5000, '[Content_Types].xml', [[0..5000, 'xl/']]]]]]],
- ['application/vnd.openxmlformats-officedocument.wordprocessingml.document', [[0, "PK\003\004", [[0..5000, '[Content_Types].xml', [[0..5000, 'word/']]]]]]]].each do |magic|
-  MimeMagic.add(magic[0], magic: magic[1])
-end

test/mimemagic_test.rb

@@ -78,7 +78,6 @@ class TestMimeMagic < Minitest::Test
   end
 
   def test_recognize_by_magic
-    load "mimemagic/overlay.rb"
     Dir['test/files/*'].each do |file|
       mime = file[11..-1].sub('.', '/').sub(/\{\w+\}/, '')
       assert_equal mime, MimeMagic.by_magic(File.read(file)).to_s
@@ -87,7 +86,6 @@ class TestMimeMagic < Minitest::Test
   end
 
   def test_recognize_all_by_magic
-    load 'mimemagic/overlay.rb'
     %w(msoffice rubyxl gdocs).each do |variant|
       file = "test/files/application.vnd.openxmlformats-officedocument.spreadsheetml{#{variant}}.sheet"
       mimes = %w[application/vnd.openxmlformats-officedocument.spreadsheetml.sheet application/zip]