pom: fix duplicated configuration

Acked-by: Gerd Behrmann
Target: trunk
Require-book: no
Require-notes: no
Patch: http://rb.dcache.org/r/5819

pom.xml

@@ -835,11 +835,6 @@
                     <artifactId>buildnumber-maven-plugin</artifactId>
                     <version>1.2</version>
                 </plugin>
-                <plugin>
-                    <groupId>org.codehaus.mojo</groupId>
-                    <artifactId>buildnumber-maven-plugin</artifactId>
-                    <version>1.2</version>
-                </plugin>
                 <plugin>
                     <groupId>org.apache.maven.plugins</groupId>
                     <artifactId>maven-surefire-plugin</artifactId>
@@ -937,23 +932,6 @@
                 </configuration>
             </plugin>
 
-            <plugin>
-                <groupId>org.codehaus.mojo</groupId>
-                <artifactId>buildnumber-maven-plugin</artifactId>
-                <executions>
-                    <execution>
-                        <phase>generate-resources</phase>
-                        <goals>
-                            <goal>create</goal>
-                        </goals>
-                    </execution>
-                </executions>
-                <configuration>
-                    <doCheck>false</doCheck>
-                    <doUpdate>false</doUpdate>
-                </configuration>
-            </plugin>
-
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-jar-plugin</artifactId>