Revert "removed begin/end block that was throwing errors"

This reverts commit 21b3bf3aa4.

# Conflicts:
#	src/sql/0-run-first/contributions.sql

src/sql/0-run-first/1-sanitize_init.sql

@@ -14,19 +14,15 @@ DELETE
 FROM project_lifecycle
 WHERE project_number = 'EVENT';
 
-
-#for some reason, Datastudio won't let us change the timezone, so it reports everything in UTC. This is the current workaround
-SET @tz_adjust = 4;
-
 UPDATE billing
-SET accepted_date = accepted_date - INTERVAL @tz_adjust HOUR,
-    line_created  = line_created - INTERVAL @tz_adjust HOUR;
+set accepted_date = accepted_date - INTERVAL 4 HOUR,
+    line_created  = line_created - INTERVAL 4 HOUR;
 UPDATE dispatch
-SET date_dispatched = date_dispatched - INTERVAL @tz_adjust HOUR;
+SET date_dispatched = date_dispatched - INTERVAL 4 HOUR;
 UPDATE project_comments
-set timestamp = timestamp - INTERVAL @tz_adjust HOUR;
+set timestamp = timestamp - INTERVAL 4 HOUR;
 UPDATE project_lifecycle
-SET timestamp = timestamp - INTERVAL @tz_adjust HOUR;
+SET timestamp = timestamp - INTERVAL 4 HOUR;
 
 ALTER TABLE project_lifecycle
     ADD COLUMN id INT AUTO_INCREMENT KEY FIRST;