Merge pull request #27 from sangria-graphql/use_sangria_2.0.1

use sangria 2.0.1

build.sbt

@@ -24,27 +24,11 @@ libraryDependencies ++= Seq(
 
   // testing
   "org.scalatest" %% "scalatest" % "3.1.4" % Test,
-  "org.sangria-graphql" %% "sangria" % "1.4.2" % Test
+  "org.sangria-graphql" %% "sangria" % "2.0.1" % Test
 )
 
 testOptions in Test += Tests.Argument(TestFrameworks.ScalaTest, "-oF")
 
-// Sangria 1.0.0 (required for AST in test) has never been published for 2.13
-libraryDependencies --= {
-  CrossVersion.partialVersion(scalaVersion.value) match {
-    case Some((2, 13)) =>
-      Seq("org.sangria-graphql" %% "sangria" % "1.4.2" % Test)
-    case _ => Seq.empty
-  }
-}
-
-excludeFilter in (Test, unmanagedSources) := {
-  CrossVersion.partialVersion(scalaVersion.value) match {
-    case Some((2, 13)) => HiddenFileFilter || "GraphQLVisitorSpec.scala"
-    case _ => NothingFilter
-  }
-}
-
 // Publishing
 releaseCrossBuild := true
 releasePublishArtifactsAction := PgpKeys.publishSigned.value