Remove kotlin.jvm.internal.KotlinPackage and corresponding code

compiler/testData/cli/jvm/wrongAbiVersion.out

@@ -8,6 +8,5 @@ public fun kotlin.Throwable.printStackTrace(writer: java.io.PrintWriter): kotlin
 (note: this may be caused by the fact that some classes compiled with an incompatible version of Kotlin were found in the classpath. Such classes cannot be loaded properly by this version of Kotlin compiler. See below for more information)
     1.printStackTrace(2, 3)
       ^
-compiler/testData/cli/jvm/wrongAbiVersionLib/bin/ClassWithWrongAbiVersion.class: error: class 'ClassWithWrongAbiVersion' was compiled with an incompatible version of Kotlin. Its ABI version is unknown, expected ABI version is $ABI_VERSION$
-compiler/testData/cli/jvm/wrongAbiVersionLib/bin/wrong/WrongPackage.class: error: class 'wrong/WrongPackage' was compiled with an incompatible version of Kotlin. Its ABI version is unknown, expected ABI version is $ABI_VERSION$
+compiler/testData/cli/jvm/wrongAbiVersionLib/bin/ClassWithWrongAbiVersion.class: error: class 'ClassWithWrongAbiVersion' was compiled with an incompatible version of Kotlin. Its ABI version is 0.30.0, expected ABI version is $ABI_VERSION$
 COMPILATION_ERROR

compiler/testData/cli/jvm/wrongAbiVersionLib/readme.txt

@@ -1,6 +1,6 @@
 /*
 To regenerate this test:
-  1. Change JvmAbi.VERSION to -1
+  1. Change JvmAbi.VERSION to an incompatible one, e.g. 0.30.0
   2. Run 'ant dist'
   3. Compile files with the newly built compiler from dist/