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/kt26360.kt

@@ -0,0 +1,20 @@
+// JVM_TARGET: 1.8
+// !JVM_DEFAULT_MODE: all
+// WITH_STDLIB
+// TARGET_BACKEND: JVM
+interface Base {
+    fun value(): String
+}
+
+interface SubA : Base
+
+@JvmDefaultWithCompatibility
+interface SubB : Base {
+    override fun value(): String = "OK"
+}
+
+interface SubAB : SubA, SubB
+
+fun box(): String {
+    return object : SubAB {}.value()
+}