Remove unused dependency on joda-time

Everyone should be using JSR-310 anyway.

Author: ato

Diff for: pom.xml

@@ -195,11 +195,6 @@
         <artifactId>httpcore</artifactId>
         <version>4.3</version>
     </dependency>
-    <dependency>
-      <groupId>joda-time</groupId>
-      <artifactId>joda-time</artifactId>
-      <version>1.6</version>
-    </dependency>
   </dependencies>
 
   <build>