Remove unnecessary comment

Author: jorgeazevedo

build.sbt

@@ -19,8 +19,6 @@ Universal / javaOptions ++= Seq(
 
 Test / javaOptions += "-Dconfig.file=conf/application.test.conf"
 
-// For local development: load config from ~/.gu/amiable.local.conf.
-// Uses Runtime scope so Play's dev server picks it up (same pattern as guardian/frontend).
 Runtime / javaOptions += s"-Dconfig.file=${System.getProperty("user.home")}/.gu/amiable.local.conf"
 
 routesGenerator := InjectedRoutesGenerator