wasm: fix network data URI scheme

Inadvertantly ifdefed out. Tested and works fine

Fixes: QTBUG-96170
Pick-to: 6.2 5.15
Change-Id: Ib26cf76a548146d4212c48b228965348038f34e8
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>

src/network/access/qnetworkaccessmanager.cpp

@@ -1156,7 +1156,6 @@ QNetworkReply *QNetworkAccessManager::createRequest(QNetworkAccessManager::Opera
     bool isLocalFile = req.url().isLocalFile();
     QString scheme = req.url().scheme();
 
-#ifndef Q_OS_WASM
 
     // fast path for GET on file:// URLs
     // The QNetworkAccessFileBackend will right now only be used for PUT
@@ -1191,7 +1190,6 @@ QNetworkReply *QNetworkAccessManager::createRequest(QNetworkAccessManager::Opera
             return reply;
         }
     }
-#endif
     QNetworkRequest request = req;
 #ifndef Q_OS_WASM // Content-length header is not allowed to be set by user in wasm
     if (!request.header(QNetworkRequest::ContentLengthHeader).isValid() &&