HTM-2003: Remove unused GeoServer extension dependencies

Removed several dependencies related to GeoServer extensions, no longer needed because we haver the `/extract` endpoint now

Author: mprins

geoserver/maven/pom.xml

@@ -62,21 +62,6 @@
             <artifactId>gs-css</artifactId>
             <version>${geoserver.version}</version>
         </dependency>
-        <dependency>
-            <groupId>org.geoserver.extension</groupId>
-            <artifactId>gs-geopkg-output-wfs</artifactId>
-            <version>${geoserver.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>org.geoserver.extension</groupId>
-            <artifactId>gs-excel-wfs</artifactId>
-            <version>${geoserver.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>org.geoserver.extension</groupId>
-            <artifactId>gs-dxf-core</artifactId>
-            <version>${geoserver.version}</version>
-        </dependency>
         <dependency>
             <groupId>org.geoserver.extension</groupId>
             <artifactId>gs-web-resource</artifactId>