Refactoring: remove unused method

compiler/frontend/src/org/jetbrains/jet/lang/resolve/lazy/declarations/EmptyPackageMemberDeclarationProvider.java

@@ -35,11 +35,6 @@ public class EmptyPackageMemberDeclarationProvider implements PackageMemberDecla
 
     private EmptyPackageMemberDeclarationProvider() {}
 
-    @Override
-    public boolean isPackageDeclared(@NotNull Name name) {
-        return false;
-    }
-
     @Override
     public Collection<FqName> getAllDeclaredPackages() {
         return Collections.emptyList();

compiler/frontend/src/org/jetbrains/jet/lang/resolve/lazy/declarations/FileBasedPackageMemberDeclarationProvider.java

@@ -22,7 +22,6 @@ import org.jetbrains.annotations.NotNull;
 import org.jetbrains.jet.lang.psi.JetDeclaration;
 import org.jetbrains.jet.lang.psi.JetFile;
 import org.jetbrains.jet.lang.resolve.name.FqName;
-import org.jetbrains.jet.lang.resolve.name.Name;
 import org.jetbrains.jet.storage.NotNullLazyValue;
 import org.jetbrains.jet.storage.StorageManager;
 
@@ -64,11 +63,6 @@ public class FileBasedPackageMemberDeclarationProvider extends AbstractPsiBasedD
         }
     }
 
-    @Override
-    public boolean isPackageDeclared(@NotNull Name name) {
-        return factory.isPackageDeclared(fqName.child(name));
-    }
-
     @Override
     public Collection<FqName> getAllDeclaredPackages() {
         return allDeclaredPackages.invoke();

compiler/frontend/src/org/jetbrains/jet/lang/resolve/lazy/declarations/PackageMemberDeclarationProvider.java

@@ -19,14 +19,11 @@ package org.jetbrains.jet.lang.resolve.lazy.declarations;
 import com.intellij.psi.NavigatablePsiElement;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.jet.lang.resolve.name.FqName;
-import org.jetbrains.jet.lang.resolve.name.Name;
 
 import java.util.Collection;
 
 public interface PackageMemberDeclarationProvider extends DeclarationProvider {
 
-    boolean isPackageDeclared(@NotNull Name name);
-
     Collection<FqName> getAllDeclaredPackages();
 
     @NotNull

idea/src/org/jetbrains/jet/plugin/stubindex/resolve/StubPackageMemberDeclarationProvider.java

@@ -22,7 +22,6 @@ import com.intellij.psi.search.GlobalSearchScope;
 import com.intellij.util.Function;
 import com.intellij.util.containers.ContainerUtil;
 import org.jetbrains.annotations.NotNull;
-import org.jetbrains.jet.asJava.LightClassGenerationSupport;
 import org.jetbrains.jet.lang.psi.JetFile;
 import org.jetbrains.jet.lang.psi.JetNamedFunction;
 import org.jetbrains.jet.lang.psi.JetProperty;
@@ -49,11 +48,6 @@ public class StubPackageMemberDeclarationProvider extends AbstractStubDeclaratio
         this.searchScope = searchScope;
     }
 
-    @Override
-    public boolean isPackageDeclared(@NotNull Name name) {
-        return LightClassGenerationSupport.getInstance(project).packageExists(fqName, searchScope);
-    }
-
     @NotNull
     @Override
     public Collection<JetNamedFunction> getFunctionDeclarations(@NotNull Name name) {