Don't reset the bidi level on spaces

Fixes a regression introduced with the update to the bidi
algorithm.

Task-number: QTBUG-69633
Change-Id: I7eac45ed3ffb41f89ea3f793eedcfb6fcdace871
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>

src/gui/text/qtextengine.cpp

@@ -2077,7 +2077,6 @@ void QTextEngine::itemize() const
         case QChar::Nbsp:
             if (option.flags() & QTextOption::ShowTabsAndSpaces) {
                 analysis->flags = QScriptAnalysis::Space;
-                analysis->bidiLevel = bidi.baseLevel;
                 break;
             }
             Q_FALLTHROUGH();