Removed unused property

Removed the jsonurl.version as the parent POM doesn't follow the same
version cycle as the artifact POMs, so it must not include such
information.

The parent version was not bumped because this property was unused
and thus wouldn't affect any artifacts.

Author: dmaccormack

module/pom.xml

@@ -57,7 +57,6 @@
     <nexus.url>https://oss.sonatype.org</nexus.url>
 
     <junit.version>[5.4,)</junit.version>
-    <jsonurl.version>1.0.0-SNAPSHOT</jsonurl.version>
     <jsonurl.description>
       RFC8259 describes the JSON data model and interchange format,
       which is widely used in application-level protocols including RESTful