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/kotlinRunner/DefaultParameterValues.it.txt

@@ -1,38 +0,0 @@
-package error;
-
-public final class NonExistentClass {
-}
-
-////////////////////
-
-package test;
-
-@Anno()
-@kotlin.Metadata()
-public final class User {
-    @org.jetbrains.annotations.NotNull()
-    private final java.lang.String name = "John";
-
-    public User() {
-        super();
-    }
-
-    public User(@org.jetbrains.annotations.NotNull()
-    java.lang.String name, int age) {
-        super();
-    }
-
-    @org.jetbrains.annotations.NotNull()
-    public final java.lang.String getName() {
-        return null;
-    }
-}
-
-////////////////////
-
-package test;
-
-@java.lang.annotation.Retention(value = java.lang.annotation.RetentionPolicy.RUNTIME)
-@kotlin.Metadata()
-public abstract @interface Anno {
-}