strip out fully custom event types

bindings/java/src/org/sleuthkit/datamodel/Bundle.properties

...ngs/java/src/org/sleuthkit/datamodel/CustomEventType.java

...ngs/java/src/org/sleuthkit/datamodel/TimelineManager.java

...va/src/org/sleuthkit/datamodel/timeline/Bundle.properties

.../java/src/org/sleuthkit/datamodel/timeline/EventType.java

tsk/auto/db_postgresql.cpp

tsk/auto/db_sqlite.cpp