C++: remove dead store.
C++: remove dead store.

Pointed out by the clang static analyzer.

Change-Id: I2d73d4c9ef2511c5697a4e4da89b61efb1149a3f
Reviewed-by: Nikolai Kosjar <9571db158ca61a0d070db010803474231fa0cbab@digia.com>

martyone/sailfish-qtcreator,kuba1/qtcreator,kuba1/qtcreator,martyone/sailfish-qtcreator,xianian/qt-creator,AltarBeastiful/qt-creator,danimo/qt-creator,Distrotech/qtcreator,amyvmiwei/qt-creator,xianian/qt-creator,danimo/qt-creator,farseerri/git_code,kuba1/qtcreator,AltarBeastiful/qt-creator,martyone/sailfish-qtcreator,kuba1/qtcreator,xianian/qt-creator,farseerri/git_code,danimo/qt-creator,amyvmiwei/qt-creator,amyvmiwei/qt-creator,kuba1/qtcreator,martyone/sailfish-qtcreator,martyone/sailfish-qtcreator,xianian/qt-creator,Distrotech/qtcreator,amyvmiwei/qt-creator,xianian/qt-creator,danimo/qt-creator,farseerri/git_code,Distrotech/qtcreator,danimo/qt-creator,AltarBeastiful/qt-creator,amyvmiwei/qt-creator,martyone/sailfish-qtcreator,AltarBeastiful/qt-creator,xianian/qt-creator,danimo/qt-creator,martyone/sailfish-qtcreator,martyone/sailfish-qtcreator,danimo/qt-creator,farseerri/git_code,AltarBeastiful/qt-creator,amyvmiwei/qt-creator,Distrotech/qtcreator,amyvmiwei/qt-creator,farseerri/git_code,danimo/qt-creator,kuba1/qtcreator,Distrotech/qtcreator,kuba1/qtcreator,Distrotech/qtcreator,farseerri/git_code,AltarBeastiful/qt-creator,danimo/qt-creator,AltarBeastiful/qt-creator,farseerri/git_code,Distrotech/qtcreator,farseerri/git_code,xianian/qt-creator,AltarBeastiful/qt-creator,amyvmiwei/qt-creator,xianian/qt-creator,kuba1/qtcreator,xianian/qt-creator,kuba1/qtcreator,martyone/sailfish-qtcreator