Revert "jdr: properly fetch supertype member names"

This reverts commit 9b13a308f8.

compiler/frontend/src/org/jetbrains/jet/lang/resolve/scopes/JetScope.java

@@ -88,9 +88,6 @@ public interface JetScope {
 
     Collection<DeclarationDescriptor> getAllDescriptors();
 
-    @NotNull
-    Collection<Name> getAllDescriptorNames();
-
     /**
      * @return EFFECTIVE implicit receiver at this point (may be corresponding to an outer scope)
      */

compiler/frontend/src/org/jetbrains/jet/lang/resolve/scopes/JetScopeBase.java

@@ -16,13 +16,9 @@
 
 package org.jetbrains.jet.lang.resolve.scopes;
 
-import com.google.common.collect.Sets;
-import org.jetbrains.annotations.NotNull;
 import org.jetbrains.jet.lang.descriptors.DeclarationDescriptor;
-import org.jetbrains.jet.lang.resolve.name.Name;
 
 import java.util.Collection;
-import java.util.Set;
 
 /**
  * @author Stepan Koltsov
@@ -34,14 +30,4 @@ public abstract class JetScopeBase implements JetScope {
         return getAllDescriptors(DescriptorPredicate.all());
     }
 
-    @NotNull
-    @Override
-    public Collection<Name> getAllDescriptorNames() {
-        // dummy implementation
-        Set<Name> r = Sets.newHashSet();
-        for (DeclarationDescriptor descriptor : getAllDescriptors()) {
-            r.add(descriptor.getName());
-        }
-        return r;
-    }
 }