ASTERIXDB-1714: Eliminate dependency on org.json

Change-Id: Ie9c5400fd134ae75d43385255af7794e968b1c7e
Reviewed-on: https://asterix-gerrit.ics.uci.edu/1392
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
BAD: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Till Westmann <tillw@apache.org>
Integration-Tests: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
diff --git a/hyracks-fullstack/hyracks/hyracks-client/pom.xml b/hyracks-fullstack/hyracks/hyracks-client/pom.xml
index bf5d167..a532366 100644
--- a/hyracks-fullstack/hyracks/hyracks-client/pom.xml
+++ b/hyracks-fullstack/hyracks/hyracks-client/pom.xml
@@ -102,14 +102,13 @@
       <version>${project.version}</version>
     </dependency>
     <dependency>
-      <groupId>com.googlecode.json-simple</groupId>
-      <artifactId>json-simple</artifactId>
-      <version>1.1</version>
-    </dependency>
-    <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
       <scope>test</scope>
     </dependency>
+    <dependency>
+      <groupId>com.fasterxml.jackson.core</groupId>
+      <artifactId>jackson-databind</artifactId>
+    </dependency>
   </dependencies>
 </project>