chore: removed reference to package.community as a source for npm team support

Author: Michael Perrotte

README.md

@@ -155,10 +155,6 @@ When you find issues, please report them:
 Be sure to include *all* of the output from the npm command that didn't work
 as expected.  The `npm-debug.log` file is also helpful to provide.
 
-You can also find npm people in `#npm` on https://package.community/ or
-[on Twitter](https://twitter.com/npm_support).  Whoever responds will no
-doubt tell you to put the output in a gist or email.
-
 ## SEE ALSO
 
 * npm(1)