Removed sbt-idea plugin, which is no longer necessary

xerial · xerial · commit 2d70492c5b71 · 2015-04-27T12:47:04.000+09:00
diff --git a/project/plugins.sbt b/project/plugins.sbt
@@ -5,8 +5,6 @@ addSbtPlugin("org.xerial.sbt" % "sbt-sonatype" % "0.2.1")
 
 addSbtPlugin("com.typesafe.sbt" % "sbt-pgp" % "0.8.3")
 
-addSbtPlugin("com.github.mpeltonen" % "sbt-idea" % "1.6.0")
-
 addSbtPlugin("de.johoop" % "findbugs4sbt" % "1.3.0")
 
 addSbtPlugin("de.johoop" % "jacoco4sbt" % "2.1.6")
