Code clean up

Author: plokhotnyuk

jsoniter-scala-macros/shared/src/main/scala-3/com/github/plokhotnyuk/jsoniter_scala/macros/JsonCodecMaker.scala

@@ -1540,9 +1540,6 @@ object JsonCodecMaker {
           else if (tpe.termSymbol.flags.is(Flags.Enum)) {
             tpe match
               case TermRef(_, name) => name
-              case TypeRef(_, name) => name
-              case AppliedType(TermRef(_, name), _) => name
-              case AppliedType(TypeRef(_, name), _) => name
               case _ => fail(s"Unsupported enum type: '${tpe.show}', tree=$tpe")
           } else if (tpe.typeSymbol.flags.is(Flags.Module)) tpe.termSymbol.fullName
           else tpe.typeSymbol.fullName

jsoniter-scala-macros/shared/src/test/scala-3/com/github/plokhotnyuk/jsoniter_scala/macros/JsonCodecMakerNewKeywordSpec.scala

@@ -114,10 +114,10 @@ class JsonCodecMakerNewKeywordSpec extends VerifyingSpec {
         verifySerDeser(summon[JsonValueCodec[TestEnum]], TestEnum.Value2("VVV"), """{"hint":"Value2","str":"VVV"}""")
       }
     }
-    "serialize and deserialize a complex generic types defined with `derives` keyword and a custom compile-time configurations" in {
+    "serialize and deserialize a complex generic types for the recursive data structure defined with `derives` keyword" in {
       verifySerDeser(make[LinkedList[Int]](CodecMakerConfig.withAllowRecursiveTypes(true)),
-        LinkedList.Node2[Int](2, LinkedList.Node[Int](1, LinkedList.End)),
-        """{"type":"Node2","value":2,"next":{"value":1,"next":{"type":"End"}}}""")
+        LinkedList.Node(2, LinkedList.Node(1, LinkedList.End)),
+        """{"type":"Node","value":2,"next":{"type":"Node","value":1,"next":{"type":"End"}}}""")
     }
     "serialize and deserialize an generic ADT defined with bounded leaf classes using a custom codec" in {
       sealed trait TypeBase[T]
@@ -207,7 +207,6 @@ class JsonCodecMakerNewKeywordSpec extends VerifyingSpec {
 
 inline given CodecMakerConfig = CodecMakerConfig.withAllowRecursiveTypes(true)
 
-enum LinkedList[+T] derives ConfiguredJsonValueCodec: // Borrowed from https://github.com/com-lihaoyi/upickle/pull/607
+enum LinkedList[+T] derives ConfiguredJsonValueCodec:
   case End
   case Node(value: T, next: LinkedList[T])
-  case Node2(value: T, next: Node[T])