Sorry for the problem.
I was wrong.  You only have to do step 2.  I corrected the post.  Still, make a backup!
This command in tools/advanced/database commands should remove the extra space. MAKE A BACKUP FIRST!
USE LOG
REPLACE ALL USERFIELDS WITH STRTRAN(USERFIELDS, "| ", "|")
To delete a user-defined field,  click DATABASE FILES/MASS CHANGE/REPLACE USER-DEFINED FIELD CONTENTS.  The WITH is just an empty string "".  This will delete the data and tag. See this video for more on mass change:
https://www.youtube.com/...?v=5d5gyJVFQEs&t=2s
Tnx & 73,
Dennis WN4AZY