[secure] Drop unused log4j1 which is critically vulnerable.

Author: hazendaz

pom.xml

@@ -108,12 +108,6 @@
       <version>2.5.1</version>
       <scope>test</scope>
     </dependency>
-    <dependency>
-      <groupId>log4j</groupId>
-      <artifactId>log4j</artifactId>
-      <version>1.2.17</version>
-      <scope>test</scope>
-    </dependency>
   </dependencies>
 
   <repositories>