Remove dupe 'justin', 'jducoeur' in top level

Author: valencik

src/blog/directory.conf

@@ -299,12 +299,6 @@ julienrf {
   bio: "Julien Richard-Foy likes writing programs. In particular, he likes leveraging programming language features to solve engineering problems. He is fascinated by languages that make it easy to turn ideas into programs that are executable by machines and easy to reason about by humans. He writes tools and MOOCs for the good of the community, at Scala Center."
 }
 
-justin {
-  name: "Justin du Coeur (Mark Waks)"
-  twitter: jducoeur
-  bio: "I’m a second-generation programmer, starting out on my father’s PDP-8 back in the mid-70s, and I’ve been a language geek ever since, working professionally in everything from LISP to Ada to assembly to C# to JavaScript to C++ to (heaven help me) COBOL, and pretty much everything in between. I picked up Scala back in 2007 (after trying to build a company in Java and winding up in a rage over its limitations); I’ve been working in Scala full-time since 2012. I’ve been doing “light FP” since picking up the style from Ruby around 2002, but am just now getting into the pure stuff. During the day, I work at Artima, doing Scala training and consulting and helping with ScalaTest. In my spare time, I’m the CEO and Architect of Querki, a wiki/database hybrid designed to make it easier for individuals and communities to manage and collaborate on their data."
-}
-
 kailuowang {
   name: "Kailuo Wang"
   avatar: "https://github.com/kailuowang.png"