Delete deprecated rendering class (#2261)

Author: paulpdaniels

build.sbt

@@ -774,7 +774,10 @@ lazy val enableMimaSettingsJVM =
   Def.settings(
     mimaFailOnProblem     := enforceMimaCompatibility,
     mimaPreviousArtifacts := previousStableVersion.value.map(organization.value %% moduleName.value % _).toSet,
-    mimaBinaryIssueFilters ++= Seq()
+    mimaBinaryIssueFilters ++= Seq(
+      ProblemFilters.exclude[MissingClassProblem]("caliban.Rendering"),
+      ProblemFilters.exclude[MissingClassProblem]("caliban.Rendering$")
+    )
   )
 
 lazy val enableMimaSettingsJS =