Kapt: remove old JVM backend test data (1/2)

In this commit, .txt expectation test data files for the old JVM backend
are deleted.

 #KT-64680

plugins/kapt3/kapt3-compiler/testData/converter/enumImports.txt

@@ -1,30 +0,0 @@
-package kapt;
-
-import kotlin.annotation.Repeatable;
-
-/**
- * public final enum class kapt/Options : kotlin/Enum<kapt/Options> {
- *
- *   // signature: <init>(Ljava/lang/String;I)V
- *   private constructor()
- *
- *   A,
- *
- *   B,
- *
- *   C,
- *
- *   // module name: main
- *
- *   // has Enum.entries
- * }
- */
-@kotlin.Metadata()
-public enum Options {
-    /*public static final*/ A /* = new Options() */,
-    /*public static final*/ B /* = new Options() */,
-    /*public static final*/ C /* = new Options() */;
-
-    Options() {
-    }
-}