JvmDefault: remove most tests on @JvmDefault

The tests are removed because JvmDefault is going to be deprecated with
error in KT-54746 and removed later in KT-57696.

Many of the removed tests already had existing counterparts with the new
modes `all` and `all-compatibility`. In this change, I've added such
tests where they were missing, and removed tests which were testing
behavior specific to the JvmDefault annotation, such as some
diagnostics.

 #KT-54746

compiler/testData/codegen/box/jvm8/defaults/allCompatibility/diamond.kt

@@ -0,0 +1,52 @@
+// !JVM_DEFAULT_MODE: all-compatibility
+// TARGET_BACKEND: JVM
+// IGNORE_BACKEND: ANDROID
+// JVM_TARGET: 1.8
+// WITH_REFLECT
+// FULL_JDK
+
+interface Test {
+    fun test(): String {
+        return "Test"
+    }
+}
+
+open class TestClass : Test {
+
+}
+
+
+interface Test2 : Test {
+    override fun test(): String {
+        return "Test2"
+    }
+}
+
+interface Test3 : Test2 {
+
+}
+
+
+class TestClass2 : TestClass(), Test3 {
+
+}
+
+fun box(): String {
+    val test = TestClass2().test()
+    if (test != "Test2") return "fail 1: $test"
+    checkNoMethod(TestClass::class.java, "test")
+    checkNoMethod(Test3::class.java, "test")
+    checkNoMethod(TestClass2::class.java, "test")
+
+    return "OK"
+}
+
+fun checkNoMethod(clazz: Class<*>, name: String) {
+    try {
+        clazz.getDeclaredMethod(name)
+    }
+    catch (e: NoSuchMethodException) {
+        return
+    }
+    throw AssertionError("fail: method $name was found in " + clazz)
+}