e3ec4924a72c33f202b10a82e8498875d8f1b775 qt: remove todo bug fix for old versions of Qt (10xcryptodev)
Pull request description:
Remove the code used to fix a Qt bug in versions before Qt 5.5.0 as described in this link https://bugreports.qt.io/browse/QTBUG-43473
Now the minimum requirement is Qt 5.5.1 as described in https://github.com/bitcoin/bitcoin/blob/master/doc/dependencies.md
This code is not necessary anymore
ACKs for top commit:
hebasto:
re-ACK e3ec4924a72c33f202b10a82e8498875d8f1b775, since the [previous review](https://github.com/bitcoin/bitcoin/pull/18769#pullrequestreview-400517155) only the prefix of the commit message has been changed.
Tree-SHA512: 57802974fccae863dde0e186847db09832b2433b11e8410a0137b27f1ae8a95bdcd9206a5ea0d79f7a2b56adc6b4bac8bb0c4db583158db36a349a6b28b81aac