The "Library Codes" plug-in can optionally easily delete any and all Identifiers except for: ISBN; ISSN; Z*; DOI; and Identifiers created specifically by the LC plug-in, such as for OCLC, ISNI, LCCN, LOC_LCCN, OCLC-OWI, LC_AUTHORITY_NAME, VIAF_AUTHOR_ID, etc.
https://www.mobileread.com/forums/sh...d.php?t=267108
So, it will optionally purge your books of Identifiers from Google, Amazon, etc.
Obviously, beauty is in the eye of the beholder. Some people find the Amazon ASIN Identifiers highly useful and even indispensable because of their Amazon software and hardware. Others, not so much. I personally do not, and use LC to delete all Identifiers other than those that it will never delete.
To delete "all" Identifiers, you could use the Bulk Edit Search and Replace function.
By the way, your example ISBN is the old ISBN-10 format. The LC plug-in will automatically convert them to the modern ISBN-13 format if you wish to keep them.
DaltonST