Remove a few more Modernizr mentions

.github/CONTRIBUTING.md

@@ -28,7 +28,6 @@ restrictions:
 
 * Please **do not** open issues or pull requests regarding the code in
   [`.htaccess`](https://github.com/h5bp/server-configs-apache),
-  [`Modernizr`](https://github.com/Modernizr/Modernizr) or
   [`Normalize.css`](https://github.com/necolas/normalize.css) (open them in
   their respective repositories).
 

.github/SUPPORT.md

@@ -5,5 +5,4 @@ For personal support requests with HTML5 Boilerplate please use Stack Overflow
 
 Please check the respective repository/website for support regarding the code in
   [`.htaccess`](https://github.com/h5bp/server-configs-apache),
-  [`Modernizr`](https://modernizr.com/) or
   [`Normalize.css`](https://github.com/necolas/normalize.css).

docs/extend.md

@@ -132,9 +132,6 @@ plugin](https://developer.mozilla.org/en-US/docs/Web/OpenSearch).
 
 ## Miscellaneous
 
-* Use
-  [polyfills](https://github.com/Modernizr/Modernizr/wiki/HTML5-Cross-browser-Polyfills).
-
 * Use [Microformats](http://microformats.org/wiki/Main_Page) (via
   [microdata](http://microformats.org/wiki/microdata)) for optimum search
   results

package.json

@@ -60,7 +60,6 @@
     "LICENSE.txt",
     "package.json",
     "dist/",
-    "modernizr-config.json",
     "README.md"
   ]
 }