Remove unused property on pom.xml

Fixes gh-326

Author: kazuki43zoo

pom.xml

@@ -111,7 +111,6 @@
 
     <!-- Reverting back to prior unit temporarily until code fixed -->
     <junit-engine.version>5.3.1</junit-engine.version>
-    <junit-platform.version>1.2.0</junit-platform.version>
   </properties>
 
   <dependencies>