Remove xml namespace that was not meant to be committed

git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/codec/trunk@409870 13f79535-47bb-0310-9956-ffa450edef68

Author: dennisl

project.xml

@@ -14,7 +14,7 @@ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
 -->
-<project xmlns="http://maven.apache.org/POM/3.0.0">
+<project>
     <pomVersion>3</pomVersion>
     <groupId>org.apache.commons</groupId>
     <artifactId>commons-codec</artifactId>