Remove unused #include <config/bitcoin-config.h>

CMake allows to incorporate compile defines into a target as its
property with applying automatically where required.

Author: hebasto

src/crypto/sha256.cpp

@@ -2,8 +2,6 @@
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
-#include <config/bitcoin-config.h> // IWYU pragma: keep
-
 #include <crypto/sha256.h>
 #include <crypto/common.h>
 

src/httpserver.cpp

@@ -2,8 +2,6 @@
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
-#include <config/bitcoin-config.h> // IWYU pragma: keep
-
 #include <httpserver.h>
 
 #include <chainparamsbase.h>

src/qt/qrimagewidget.cpp

@@ -15,8 +15,6 @@
 #include <QMouseEvent>
 #include <QPainter>
 
-#include <config/bitcoin-config.h> // IWYU pragma: keep
-
 #ifdef USE_QRCODE
 #include <qrencode.h>
 #endif

src/qt/receiverequestdialog.cpp

@@ -14,8 +14,6 @@
 #include <QDialog>
 #include <QString>
 
-#include <config/bitcoin-config.h> // IWYU pragma: keep
-
 ReceiveRequestDialog::ReceiveRequestDialog(QWidget* parent)
     : QDialog(parent, GUIUtil::dialog_flags),
       ui(new Ui::ReceiveRequestDialog)