removed git-upload plugin

Author: Thibault Debatty

pom.xml

@@ -125,26 +125,6 @@
                 </configuration>
             </plugin>
 
-            <!-- To upload code to Github -->
-            <plugin>
-              <groupId>com.github.github</groupId>
-              <artifactId>downloads-maven-plugin</artifactId>
-              <version>0.6</version>
-              <configuration>
-                <description>Release ${project.version}</description>
-                <override>true</override>
-                <includeAttached>true</includeAttached>
-                <server>github.com</server>
-              </configuration>
-              <executions>
-                <execution>
-                  <goals>
-                    <goal>upload</goal>
-                  </goals>
-                  <phase>deploy</phase>
-                </execution>
-              </executions>
-            </plugin>
         </plugins>
     </build>
 </project>