Delete Public SSH Key tmp file after calculating fingerprint (#1855)

* Delete public key tmp file after calculating fingerprint

Signed-off-by: Magnus Lindvall <magnus@dnmgns.com>

* Move line

Signed-off-by: Magnus Lindvall <magnus@dnmgns.com>

* Remove defer statement

Signed-off-by: Magnus Lindvall <magnus@dnmgns.com>

* Readd defer statement and move remove

Signed-off-by: Magnus Lindvall <magnus@dnmgns.com>

* Delete space

Signed-off-by: Magnus Lindvall <magnus@dnmgns.com>

models/ssh_key.go

@@ -376,6 +376,7 @@ func calcFingerprint(publicKeyContent string) (string, error) {
 	if err != nil {
 		return "", err
 	}
+	defer os.Remove(tmpPath)
 	stdout, stderr, err := process.GetManager().Exec("AddPublicKey", "ssh-keygen", "-lf", tmpPath)
 	if err != nil {
 		return "", fmt.Errorf("'ssh-keygen -lf %s' failed with error '%s': %s", tmpPath, err, stderr)