CR: Leave old db update code as it was.

This may not have caused any trouble, but the principle behind the old
behaviour is that at the point that that was required, the fdroid_repo
table had that particular structure. There is a small chance that it
_may_ have some unintended consequences when upgrading clients with very
old database versions. Probably not, but may as well leave it as is.

F-Droid/src/org/fdroid/fdroid/data/DBHelper.java

@@ -169,14 +169,12 @@ public class DBHelper extends SQLiteOpenHelper {
                         + "maxage integer not null default 0, "
                         + "version integer not null default 0, "
                         + "lastetag text, "
-                        + "lastUpdated string,"
-                        + "username string, password string"
-                        + ");";
+                        + "lastUpdated string);";
 
                 db.execSQL(createTableDdl);
 
                 String nonIdFields = "address,  name, description, inuse, priority, " +
-                        "pubkey, fingerprint, maxage, version, lastetag, lastUpdated, username, password";
+                        "pubkey, fingerprint, maxage, version, lastetag, lastUpdated";
 
                 String insertSql = "INSERT INTO " + TABLE_REPO +
                         "(_id, " + nonIdFields + " ) " +