secret: Add NULL obj check to virSecretObjListRemove

Rather than have the caller check if !obj before calling, just check
in the function for !obj and return.
Signed-off-by: NJohn Ferlan <jferlan@redhat.com>

src/conf/virsecretobj.c

@@ -298,6 +298,9 @@ virSecretObjListRemove(virSecretObjListPtr secrets,
 {
     char uuidstr[VIR_UUID_STRING_BUFLEN];
 
+    if (!obj)
+        return;
+
     virUUIDFormat(secret->def->uuid, uuidstr);
     virObjectRef(secret);
     virObjectUnlock(secret);
@@ -915,7 +918,6 @@ virSecretLoad(virSecretObjListPtr secrets,
     secret = NULL;
 
  cleanup:
-    if (secret)
     virSecretObjListRemove(secrets, secret);
     virSecretDefFree(def);
     return ret;