Revert "added details to section 4.1.2 of the Asset Pipeline guide, describing...

Revert "added details to section 4.1.2 of the Asset Pipeline guide, describing how to configure Apache to serve the gzipped version of the precompiled assets"

This reverts commit aec466e7.

Reason: We're not sure about the correctness and won't want to document
something like this with doubts.

guides/source/asset_pipeline.md

@@ -547,35 +547,7 @@ This directive is available if the core module that provides this feature was co
 
 If you're compiling nginx with Phusion Passenger you'll need to pass that option when prompted.
 
-Apache is also able to serve the [gzipped](http://en.wikipedia.org/wiki/Gzip) version of your assets; however, it requires a bit more work:
-
-```apache
-<LocationMatch "^/assets/.*$">
-  Header unset ETag
-  FileETag None
-
-  # RFC says only cache for 1 year
-  ExpiresActive On
-  ExpiresDefault "access plus 1 year"
-
-  RewriteEngine	On
-  RewriteCond %{HTTP:Accept-Encoding} gzip
-  RewriteCond %{HTTP_USER_AGENT} !Konqueror
-  RewriteCond %{REQUEST_FILENAME}.gz -f
-  RewriteRule ^(.+).(css|js)$ $1.$2.gz [QSA,L]
-</LocationMatch>
-
-<FilesMatch \.css\.gz>
-  ForceType text/css
-</FilesMatch>
-
-<FilesMatch \.js\.gz>
-  ForceType application/javascript
-</FilesMatch>
-AddEncoding gzip .gz
-```
-
-NOTE: You will need to make sure `mod_headers`, `mod_mime` and `mod_rewrite` are loaded; otherwise, the above configuration will fail.
+A robust configuration for Apache is possible but tricky; please Google around. (Or help update this Guide if you have a good example configuration for Apache.)
 
 ### Local Precompilation