Drop unused get/set implementations from PropertyReference runtime classes

They are overridden in all subclasses anyway: either in the corresponding
(Mutable)PropertyReferenceNImpl class, or in the anonymous class for a
reference, generated by the compiler.

core/runtime.jvm/src/kotlin/jvm/internal/MutablePropertyReference0.java

@@ -20,22 +20,12 @@ import kotlin.reflect.KCallable;
 import kotlin.reflect.KMutableProperty0;
 import kotlin.reflect.KProperty0;
 
-public class MutablePropertyReference0 extends MutablePropertyReference implements KMutableProperty0 {
+public abstract class MutablePropertyReference0 extends MutablePropertyReference implements KMutableProperty0 {
     @Override
     protected KCallable computeReflected() {
         return Reflection.mutableProperty0(this);
     }
 
-    @Override
-    public Object get() {
-        return ((KMutableProperty0) getReflected()).get();
-    }
-
-    @Override
-    public void set(Object value) {
-        ((KMutableProperty0) getReflected()).set(value);
-    }
-
     @Override
     public Object invoke() {
         return get();

core/runtime.jvm/src/kotlin/jvm/internal/MutablePropertyReference1.java

@@ -20,22 +20,12 @@ import kotlin.reflect.KCallable;
 import kotlin.reflect.KMutableProperty1;
 import kotlin.reflect.KProperty1;
 
-public class MutablePropertyReference1 extends MutablePropertyReference implements KMutableProperty1 {
+public abstract class MutablePropertyReference1 extends MutablePropertyReference implements KMutableProperty1 {
     @Override
     protected KCallable computeReflected() {
         return Reflection.mutableProperty1(this);
     }
 
-    @Override
-    public Object get(Object receiver) {
-        return ((KMutableProperty1) getReflected()).get(receiver);
-    }
-
-    @Override
-    public void set(Object receiver, Object value) {
-        ((KMutableProperty1) getReflected()).set(receiver, value);
-    }
-
     @Override
     public Object invoke(Object receiver) {
         return get(receiver);

core/runtime.jvm/src/kotlin/jvm/internal/MutablePropertyReference2.java

@@ -20,22 +20,12 @@ import kotlin.reflect.KCallable;
 import kotlin.reflect.KMutableProperty2;
 import kotlin.reflect.KProperty2;
 
-public class MutablePropertyReference2 extends MutablePropertyReference implements KMutableProperty2 {
+public abstract class MutablePropertyReference2 extends MutablePropertyReference implements KMutableProperty2 {
     @Override
     protected KCallable computeReflected() {
         return Reflection.mutableProperty2(this);
     }
 
-    @Override
-    public Object get(Object receiver1, Object receiver2) {
-        return ((KMutableProperty2) getReflected()).get(receiver1, receiver2);
-    }
-
-    @Override
-    public void set(Object receiver1, Object receiver2, Object value) {
-        ((KMutableProperty2) getReflected()).set(receiver1, receiver2, value);
-    }
-
     @Override
     public Object invoke(Object receiver1, Object receiver2) {
         return get(receiver1, receiver2);

core/runtime.jvm/src/kotlin/jvm/internal/PropertyReference0.java

@@ -19,17 +19,12 @@ package kotlin.jvm.internal;
 import kotlin.reflect.KCallable;
 import kotlin.reflect.KProperty0;
 
-public class PropertyReference0 extends PropertyReference implements KProperty0 {
+public abstract class PropertyReference0 extends PropertyReference implements KProperty0 {
     @Override
     protected KCallable computeReflected() {
         return Reflection.property0(this);
     }
 
-    @Override
-    public Object get() {
-        return ((KProperty0) getReflected()).get();
-    }
-
     @Override
     public Object invoke() {
         return get();

core/runtime.jvm/src/kotlin/jvm/internal/PropertyReference1.java

@@ -19,17 +19,12 @@ package kotlin.jvm.internal;
 import kotlin.reflect.KCallable;
 import kotlin.reflect.KProperty1;
 
-public class PropertyReference1 extends PropertyReference implements KProperty1 {
+public abstract class PropertyReference1 extends PropertyReference implements KProperty1 {
     @Override
     protected KCallable computeReflected() {
         return Reflection.property1(this);
     }
 
-    @Override
-    public Object get(Object receiver) {
-        return ((KProperty1) getReflected()).get(receiver);
-    }
-
     @Override
     public Object invoke(Object receiver) {
         return get(receiver);

core/runtime.jvm/src/kotlin/jvm/internal/PropertyReference2.java

@@ -19,17 +19,12 @@ package kotlin.jvm.internal;
 import kotlin.reflect.KCallable;
 import kotlin.reflect.KProperty2;
 
-public class PropertyReference2 extends PropertyReference implements KProperty2 {
+public abstract class PropertyReference2 extends PropertyReference implements KProperty2 {
     @Override
     protected KCallable computeReflected() {
         return Reflection.property2(this);
     }
 
-    @Override
-    public Object get(Object receiver1, Object receiver2) {
-        return ((KProperty2) getReflected()).get(receiver1, receiver2);
-    }
-
     @Override
     public Object invoke(Object receiver1, Object receiver2) {
         return get(receiver1, receiver2);