(enhancement) added flatten maven plugin

pom.xml

@@ -22,7 +22,7 @@
         <tika.version>1.22</tika.version>
         <truth.version>1.0</truth.version>
         <headlessMode>false</headlessMode>
-        <revision>2.2.2</revision>
+        <revision>2.2.2-hotfix-1</revision>
     </properties>
 
     <licenses>
@@ -180,30 +180,6 @@
                     <autoReleaseAfterClose>true</autoReleaseAfterClose>
                 </configuration>
             </plugin>
-            <plugin>
-                <groupId>org.codehaus.mojo</groupId>
-                <artifactId>flatten-maven-plugin</artifactId>
-                <version>1.0.0</version>
-                <configuration>
-                    <updatePomFile>true</updatePomFile>
-                </configuration>
-                <executions>
-                    <execution>
-                        <id>flatten</id>
-                        <phase>process-resources</phase>
-                        <goals>
-                            <goal>flatten</goal>
-                        </goals>
-                    </execution>
-                    <execution>
-                        <id>flatten.clean</id>
-                        <phase>clean</phase>
-                        <goals>
-                            <goal>clean</goal>
-                        </goals>
-                    </execution>
-                </executions>
-            </plugin>
         </plugins>
 
     </build>