Merge pull request #165 from apache/fix-eclipse-warning

Remove redundant version declaration
diff --git a/datasketches-memory-java11/pom.xml b/datasketches-memory-java11/pom.xml
index e8a4e29..21490e3 100644
--- a/datasketches-memory-java11/pom.xml
+++ b/datasketches-memory-java11/pom.xml
@@ -93,7 +93,6 @@
                     <plugin>
                         <groupId>org.codehaus.mojo</groupId>
                         <artifactId>exec-maven-plugin</artifactId>
-                        <version>${maven-exec-plugin.version}</version>
                         <executions>
                             <execution>
                                 <id>package-mr-jar</id>