Code Cleanup

- Removed unused Tree code.

test/CMakeLists.txt

@@ -8,8 +8,7 @@ include_directories (${CMAKE_SOURCE_DIR}/src
 set (test_SRCS att.t autocomplete.t cmd.t color.t config.t date.t directory.t
                dom.t duration.t file.t filt.t json.t list.t nibbler.t path.t
                record.t rectangle.t rx.t seq.t subst.t t.benchmark.t t.t
-               taskmod.t tdb.t tdb2.t text.t tree.t tree2.t uri.t util.t
-               variant.t view.t
+               taskmod.t tdb.t tdb2.t text.t uri.t util.t variant.t view.t
                json_test)
 
 add_custom_target (test ./run_all DEPENDS ${test_SRCS}