diff --git a/offlineimap/init.py b/offlineimap/init.py
index 636db5d..6803fd8 100644
--- a/offlineimap/init.py
+++ b/offlineimap/init.py
@@ -323,13 +323,6 @@ class OfflineImap:
 
         self.config is supposed to have been correctly initialized
         already."""
-        try:
-            pidfd = open(self.config.getmetadatadir() + "/pid", "w")
-            pidfd.write(str(os.getpid()) + "\n")
-            pidfd.close()
-        except:
-            pass
-
         try:
             # Honor CLI --account option, only.
             # Accounts to sync are put into syncaccounts variable.