Remove TSK_IP_DHCP artifact

Remove TSK_IP_DHCP artifact and update artifact catalog

bindings/java/doxygen/artifact_catalog.dox

@@ -415,15 +415,6 @@ Indication that the source file matches some set of criteria (possibly user defi
 
 
 
----
-## TSK_IP_DHCP
-DHCP information that is stored.
-
-### REQUIRED ATTRIBUTES
-- TSK_NAME (Description of Information)
-- TSK_VALUE (Value of Information)
-
-
 ---
 ## TSK_KEYWORD_HIT
 Indication that the source artifact or file contains a keyword. Keywords are grouped into named sets.

bindings/java/src/org/sleuthkit/datamodel/BlackboardArtifact.java

@@ -1267,11 +1267,6 @@ public enum ARTIFACT_TYPE implements SleuthkitVisitableItem {
 		 */
 		TSK_SCREEN_SHOTS(60, "TSK_SCREEN_SHOTS",
 				bundle.getString("BlackboardArtifact.tskScreenShots.text")),
-		/**
-		 * DHCP Information that is store for a device.
-		 */
-		TSK_IP_DHCP(61, "TSK_IP_DHCP",
-				bundle.getString("BlackboardArtifact.tskDhcpInfo.text")),
 		/**
 		 * Notifications Sent to User.
 		 */