Removing photark-filesystem from pom.xml as it's not available

git-svn-id: https://svn.apache.org/repos/asf/incubator/photark/trunk@895121 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom.xml b/pom.xml
index 6795042..8615e78 100644
--- a/pom.xml
+++ b/pom.xml
@@ -292,8 +292,4 @@
             </plugins>
         </pluginManagement>
     </build>
-
-  <modules>
-    <module>photark-filesystem</module>
-  </modules>
 </project>
\ No newline at end of file