Revert of Cherry pick buildbot cda35a4edcc822b0169412e2ad17c75973050807:

third_party/buildbot_8_4p1/buildbot/db/pool.py

Index: third_party/buildbot_8_4p1/buildbot/db/pool.py
diff --git a/third_party/buildbot_8_4p1/buildbot/db/pool.py b/third_party/buildbot_8_4p1/buildbot/db/pool.py
index fe3540ad68b91faa9c4fc688bf6f9e4a5d5e7002..270243d4e855f1a1dda1edc5e3fa390e7614e22c 100644
--- a/third_party/buildbot_8_4p1/buildbot/db/pool.py
+++ b/third_party/buildbot_8_4p1/buildbot/db/pool.py
@@ -54,11 +54,10 @@
                 log.msg("NOTE: this old version of SQLite does not support "
                         "WAL journal mode; a busy master may encounter "
                         "'Database is locked' errors.  Consider upgrading.")
-            if vers < (3,4):
-                log.msg("NOTE: this old version of SQLite is not supported. "
-                        "It fails for multiple simultaneous accesses to the "
-                        "database: try adding the 'pool_size=1' argument to "
-                        "your db url. ")
+            if vers < (3,3,17):
+                log.msg("NOTE: this old version of SQLite does not support "
+                        "multiple simultaneous accesses to the database; "
+                        "add the 'pool_size=1' argument to your db url")
             brkn = self.__broken_sqlite = self.detect_bug1810()
             if brkn:
                 log.msg("Applying SQLite workaround from Buildbot bug #1810")