Merge pull request #221 from mkurz/no_publishTo

Remove `publishTo`, we use sbt-ci-release

Author: mkurz

build.sbt

@@ -20,7 +20,6 @@ lazy val plugin = project
     startYear := Some(2015),
     description := "Formats Java code in your project.",
     licenses += ("Apache-2.0", url("https://www.apache.org/licenses/LICENSE-2.0.html")),
-    publishTo := Some(if (isSnapshot.value) Opts.resolver.sonatypeSnapshots else Opts.resolver.sonatypeStaging),
     (pluginCrossBuild / sbtVersion) := {
       scalaBinaryVersion.value match {
         case "2.12" => "1.5.8"