Bootstrap: remove QRandomGenerator

The bootstrapped tools really mustn't produce random output (they must
always be reproducible exactly). Therefore, ensure we don't need this
file.

Change-Id: I01ec3c774d9943adb903fffd17b7eb94dbd4be89
Reviewed-by:  Alexey Edelev <alexey.edelev@qt.io>
Reviewed-by: Ahmad Samir <a.samirh78@gmail.com>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>

src/corelib/plugin/quuid.cpp

@@ -992,7 +992,7 @@ QUuid QUuid::createUuid()
     return result;
 }
 
-#else // Q_OS_WIN
+#elif !defined(QT_BOOTSTRAPPED)
 
 QUuid QUuid::createUuid()
 {
@@ -1006,7 +1006,7 @@ QUuid QUuid::createUuid()
 
     return result;
 }
-#endif // !Q_OS_WIN
+#endif // !Q_OS_WIN && !QT_BOOTSTRAPPED
 
 /*!
     \fn bool QUuid::operator==(const GUID &guid) const

src/corelib/tools/qhash.cpp

@@ -85,6 +85,7 @@ struct HashSeedStorage
 
     void resetSeed()
     {
+#ifndef QT_BOOTSTRAPPED
         if (state().state < AlreadyInitialized)
             return;
 
@@ -92,6 +93,7 @@ struct HashSeedStorage
         QRandomGenerator *generator = QRandomGenerator::system();
         seeds[0].storeRelaxed(sizeof(size_t) > sizeof(quint32)
                               ? generator->generate64() : generator->generate());
+#endif
     }
 
     void clearSeed()

src/tools/bootstrap/CMakeLists.txt

@@ -20,7 +20,6 @@ qt_internal_extend_target(Bootstrap
         ../../corelib/global/qmalloc.cpp
         ../../corelib/global/qnumeric.cpp
         ../../corelib/global/qoperatingsystemversion.cpp
-        ../../corelib/global/qrandom.cpp
         ../../corelib/global/qtenvironmentvariables.cpp
         ../../corelib/io/qabstractfileengine.cpp
         ../../corelib/io/qbuffer.cpp