Need support in removing the Carriage Returns

[kaml.mish]

Hello All
As part of json response, I am getting a QString with multiple carriage returns.
I need support in removing them , as the string is of quite a big size.
I tried using

QString::simplified
QString::remove(QRegExp(["\r\n]));

QString::simplified
QString::remove(QRegExp(["\r\n]));

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Please find the string attached as a file.