Re-attempt to delete temporary upload if the file is locked by another process (#12447)

Replace all calls to os.Remove/os.RemoveAll by retrying util.Remove/util.RemoveAll and remove circular dependencies from util.

Fix #12339

Signed-off-by: Andrew Thornton <art27@cantab.net>
Co-authored-by: silverwind <me@silverwind.io>

modules/util/sanitize.go

@@ -7,8 +7,6 @@ package util
 import (
 	"net/url"
 	"strings"
-
-	"code.gitea.io/gitea/modules/log"
 )
 
 // urlSafeError wraps an error whose message may contain a sensitive URL
@@ -38,7 +36,6 @@ func SanitizeMessage(message, unsanitizedURL string) string {
 func SanitizeURLCredentials(unsanitizedURL string, usePlaceholder bool) string {
 	u, err := url.Parse(unsanitizedURL)
 	if err != nil {
-		log.Error("parse url %s failed: %v", unsanitizedURL, err)
 		// don't log the error, since it might contain unsanitized URL.
 		return "(unparsable url)"
 	}