add unformatted disk as part of the error list (#10128)

these errors should be ignored for quorum
error calculation to ensure that we don't
prematurely return unformatted disk error
as part of API calls

cmd/web-handlers.go

@@ -715,6 +715,7 @@ next:
 
 			_, err = deleteObject(ctx, objectAPI, web.CacheAPI(), args.BucketName, objectName, r, opts)
 			logger.LogIf(ctx, err)
+			continue
 		}
 
 		if authErr == errNoAuthToken {