README: Remove note about Windows line endings

We now use .gitattributes to control line endings.

Ref jquerygh-493

Author: scottgonzalez

README.md

@@ -46,8 +46,6 @@ As this site is part of the jQuery network of sites, its presentation is control
 3. Edit config.json to use the username and password for your local WordPress network
 4. `grunt`
 
-*Windows note: Line endings need to be Unix-style (line-feed only). Make sure your text editor creates new files with Unix-style line endings. In addition, the following setting to your git config will keep the Unix-style line endings when pulling from the repository.*
-
 ```
 $ git config --global core.autocrlf true
 ```