JVM: remove tests on JVM target 1.6

compiler/testData/codegen/asmLike/typeAnnotations/typeParameter16.asm.txt

@@ -1,10 +0,0 @@
-public final class foo/Kotlin : java/lang/Object {
-    public void <init>()
-
-    <T:Ljava/lang/Object;>(TT;)TT;
-    public final java.lang.Object bar(java.lang.Object p)
-}
-
-public abstract interface foo/TypeParameterAnn : java/lang/Object, java/lang/annotation/Annotation {
-    public abstract java.lang.String name()
-}

compiler/testData/codegen/asmLike/typeAnnotations/typeParameter16.kt

@@ -1,15 +0,0 @@
-// RENDER_ANNOTATIONS
-// TARGET_BACKEND: JVM
-// JVM_TARGET: 1.6
-package foo
-
-@Target(AnnotationTarget.TYPE_PARAMETER)
-annotation class TypeParameterAnn(val name: String)
-
-class Kotlin {
-
-    fun <@TypeParameterAnn("T") T> bar(p: T): T {
-        return p
-    }
-
-}

compiler/testData/codegen/box/annotations/typeAnnotationOnJdk6.kt

@@ -1,12 +0,0 @@
-// TARGET_BACKEND: JVM
-// WITH_STDLIB
-// JVM_TARGET: 1.6
-
-@Target(AnnotationTarget.TYPE)
-annotation class A
-
-fun box(): String {
-    A::class.java.declaredAnnotations.joinToString()
-    ExtensionFunctionType::class.java.declaredAnnotations.joinToString()
-    return "OK"
-}

compiler/testData/codegen/bytecodeText/hashCode/hashCode_1_6.kt

@@ -1,18 +0,0 @@
-// JVM_TARGET: 1.6
-
-fun box(): String {
-    true.hashCode()
-    1.toByte().hashCode()
-    1.toChar().hashCode()
-    1.toShort().hashCode()
-    1.hashCode()
-    1L.hashCode()
-    1.0F.hashCode()
-    1.0.hashCode()
-    "".hashCode()
-
-    return "OK"
-}
-
-// 9 \.hashCode
-// 9 \.hashCode \(\)I