Pickup commons.javadoc.version from parent POM

Remove temporary Javadoc hack

Author: garydgregory

pom.xml

@@ -108,11 +108,6 @@
     </site>
   </distributionManagement>
   <properties>
-    <!-- TEMP HACK START -->
-    <!-- Something is broken in 3.11.3, see Maven user mailing list. -->
-    <commons.javadoc.version>3.11.2</commons.javadoc.version>
-    <!-- TEMP HACK END -->
-
     <heapSize>-Xmx512m</heapSize>
     <extraArgs/>
     <systemProperties/>