remove Scala 3 blocks for play-json-generic module

Author: mr-git

build.sbt

@@ -41,6 +41,7 @@ lazy val root = project
   .settings(
     commonSettings,
     publish / skip := true,
+    name := "play-json-tools",
   )
   .aggregate(
     `play-json-tools`,
@@ -52,10 +53,8 @@ lazy val root = project
   )
 
 lazy val `play-json-genericJVM` = `play-json-generic`.jvm
-  .settings(crossScalaVersions -= Scala3)
 
 lazy val `play-json-genericJS` = `play-json-generic`.js
-  .settings(crossScalaVersions -= Scala3)
 
 lazy val `play-json-generic` = crossProject(JVMPlatform, JSPlatform)
   .crossType(CrossType.Pure)