qbs project: Do not build valgrind test apps on Windows
qbs project: Do not build valgrind test apps on Windows

Valgrind doesn't work on Windows, and the compiler flags for those test
apps are incompatible with MSVC

Change-Id: I9c17c29759d18434ef4a14cc57bcfde8405d770f
Reviewed-by: Joerg Bornemann <47777b9406dbddd02a3fdca8341789a013805a11@digia.com>

kuba1/qtcreator,xianian/qt-creator,richardmg/qtcreator,darksylinc/qt-creator,AltarBeastiful/qt-creator,martyone/sailfish-qtcreator,maui-packages/qt-creator,richardmg/qtcreator,farseerri/git_code,Distrotech/qtcreator,martyone/sailfish-qtcreator,colede/qtcreator,richardmg/qtcreator,danimo/qt-creator,martyone/sailfish-qtcreator,kuba1/qtcreator,maui-packages/qt-creator,colede/qtcreator,Distrotech/qtcreator,farseerri/git_code,darksylinc/qt-creator,Distrotech/qtcreator,xianian/qt-creator,farseerri/git_code,darksylinc/qt-creator,AltarBeastiful/qt-creator,darksylinc/qt-creator,amyvmiwei/qt-creator,amyvmiwei/qt-creator,colede/qtcreator,danimo/qt-creator,maui-packages/qt-creator,kuba1/qtcreator,martyone/sailfish-qtcreator,richardmg/qtcreator,colede/qtcreator,AltarBeastiful/qt-creator,amyvmiwei/qt-creator,colede/qtcreator,omniacreator/qtcreator,AltarBeastiful/qt-creator,maui-packages/qt-creator,danimo/qt-creator,amyvmiwei/qt-creator,richardmg/qtcreator,omniacreator/qtcreator,farseerri/git_code,Distrotech/qtcreator,farseerri/git_code,xianian/qt-creator,Distrotech/qtcreator,AltarBeastiful/qt-creator,danimo/qt-creator,amyvmiwei/qt-creator,martyone/sailfish-qtcreator,farseerri/git_code,kuba1/qtcreator,AltarBeastiful/qt-creator,darksylinc/qt-creator,Distrotech/qtcreator,colede/qtcreator,martyone/sailfish-qtcreator,richardmg/qtcreator,omniacreator/qtcreator,Distrotech/qtcreator,darksylinc/qt-creator,xianian/qt-creator,amyvmiwei/qt-creator,danimo/qt-creator,AltarBeastiful/qt-creator,xianian/qt-creator,kuba1/qtcreator,omniacreator/qtcreator,maui-packages/qt-creator,darksylinc/qt-creator,amyvmiwei/qt-creator,maui-packages/qt-creator,kuba1/qtcreator,kuba1/qtcreator,xianian/qt-creator,omniacreator/qtcreator,martyone/sailfish-qtcreator,omniacreator/qtcreator,xianian/qt-creator,kuba1/qtcreator,maui-packages/qt-creator,xianian/qt-creator,richardmg/qtcreator,danimo/qt-creator,colede/qtcreator,martyone/sailfish-qtcreator,omniacreator/qtcreator,danimo/qt-creator,farseerri/git_code,danimo/qt-creator,xianian/qt-creator,martyone/sailfish-qtcreator,amyvmiwei/qt-creator,darksylinc/qt-creator,AltarBeastiful/qt-creator,kuba1/qtcreator,farseerri/git_code,danimo/qt-creator