diff --git a/src/main/java/com/powsybl/network/conversion/server/GeneratorActivePowerControlXmlSerializer.java b/src/main/java/com/powsybl/network/conversion/server/GeneratorActivePowerControlXmlSerializer.java
deleted file mode 100644
index 23c1801..0000000
--- a/src/main/java/com/powsybl/network/conversion/server/GeneratorActivePowerControlXmlSerializer.java
+++ /dev/null
@@ -1,79 +0,0 @@
-/**
- * Copyright (c) 2022, RTE (http://www.rte-france.com)
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/.
- */
-package com.powsybl.network.conversion.server;
-
-import com.google.auto.service.AutoService;
-import com.powsybl.commons.extensions.ExtensionXmlSerializer;
-import com.powsybl.commons.xml.XmlReaderContext;
-import com.powsybl.commons.xml.XmlUtil;
-import com.powsybl.commons.xml.XmlWriterContext;
-import com.powsybl.iidm.network.Injection;
-import com.powsybl.iidm.network.extensions.ActivePowerControl;
-import com.powsybl.iidm.network.extensions.ActivePowerControlAdder;
-
-import javax.xml.stream.XMLStreamException;
-import java.io.InputStream;
-
-/**
- * HACK!!! this class should be included in iidm-cvg-extensions. To remove when migration to rte-core 3.10.0.
- *
- * @author Geoffroy Jamgotchian <geoffroy.jamgotchian at rte-france.com>
- */
-@AutoService(ExtensionXmlSerializer.class)
-public class GeneratorActivePowerControlXmlSerializer<T extends Injection<T>> implements ExtensionXmlSerializer<T, ActivePowerControl<T>> {
-
-    @Override
-    public String getExtensionName() {
-        return "generatorActivePowerControl";
-    }
-
-    @Override
-    public String getCategoryName() {
-        return "network";
-    }
-
-    @Override
-    public Class<? super ActivePowerControl<T>> getExtensionClass() {
-        return ActivePowerControl.class;
-    }
-
-    @Override
-    public boolean hasSubElements() {
-        return false;
-    }
-
-    @Override
-    public InputStream getXsdAsStream() {
-        return getClass().getResourceAsStream("/xsd/generatorActivePowerControl.xsd");
-    }
-
-    @Override
-    public String getNamespaceUri() {
-        return "http://www.itesla_project.eu/schema/iidm/ext/generator_active_power_control/1_0";
-    }
-
-    @Override
-    public String getNamespacePrefix() {
-        return "gapc";
-    }
-
-    @Override
-    public void write(ActivePowerControl activePowerControl, XmlWriterContext context) throws XMLStreamException {
-        throw new IllegalStateException("Should never be called");
-    }
-
-    @Override
-    public ActivePowerControl<T> read(T identifiable, XmlReaderContext context) {
-        boolean participate = XmlUtil.readBoolAttribute(context.getReader(), "participate");
-        float droop = XmlUtil.readFloatAttribute(context.getReader(), "droop");
-        identifiable.newExtension(ActivePowerControlAdder.class)
-                .withParticipate(participate)
-                .withDroop(droop)
-                .add();
-        return identifiable.getExtension(ActivePowerControl.class);
-    }
-}