README: remove brew server.

Author: MikeMcQuaid

README.md

@@ -6,8 +6,7 @@ What Packages Are Available?
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 1. You can [browse the Formula directory on GitHub][formula].
 2. Or type `brew search` for a list.
-3. Or run `brew server` to browse packages off of a local web server.
-4. Or visit [braumeister.org][braumeister] to browse packages online.
+3. Or visit [braumeister.org][braumeister] to browse packages online.
 
 More Documentation
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