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/inlineClasses.txt

@@ -1,57 +0,0 @@
-@kotlin.jvm.JvmInline()
-/**
- * public final value class Cl : kotlin/Any {
- *
- *   // signature: constructor-impl(Ljava/lang/String;)Ljava/lang/String;
- *   public constructor(a: kotlin/String)
- *
- *   // signature: equals(Ljava/lang/Object;)Z
- *   public open (* synthesized *) operator fun equals(other: kotlin/Any?): kotlin/Boolean
- *
- *   // signature: hashCode()I
- *   public open (* synthesized *) fun hashCode(): kotlin/Int
- *
- *   // signature: toString()Ljava/lang/String;
- *   public open (* synthesized *) fun toString(): kotlin/String
- *
- *   // field: a:Ljava/lang/String;
- *   // getter: getA()Ljava/lang/String;
- *   public final val a: kotlin/String
- *     public final get
- *
- *   // underlying property: a
- *
- *   // underlying type: kotlin/String
- *
- *   // module name: main
- * }
- */
-@kotlin.Metadata()
-public final class Cl {
-
-    public Cl() {
-        super();
-    }
-    @org.jetbrains.annotations.NotNull()
-    private final java.lang.String a = null;
-
-    @java.lang.Override()
-    public boolean equals(java.lang.Object other) {
-        return false;
-    }
-
-    @java.lang.Override()
-    public int hashCode() {
-        return 0;
-    }
-
-    @java.lang.Override()
-    public java.lang.String toString() {
-        return null;
-    }
-
-    @org.jetbrains.annotations.NotNull()
-    public final java.lang.String getA() {
-        return null;
-    }
-}