SessionManager: Remove declaration of not implemented function
SessionManager: Remove declaration of not implemented function

The function was removed long ago.

Change-Id: Iee1e413bb675e360eb15a89bcb5d37ac83b40e84
Reviewed-by: Tobias Hunger <012f8d714267bccc9d4766fbeace9f175fcc70c4@nokia.com>

azat/qtcreator,jonnor/qt-creator,martyone/sailfish-qtcreator,kuba1/qtcreator,farseerri/git_code,maui-packages/qt-creator,hdweiss/qt-creator-visualizer,danimo/qt-creator,KDAB/KDAB-Creator,malikcjm/qtcreator,richardmg/qtcreator,kuba1/qtcreator,darksylinc/qt-creator,duythanhphan/qt-creator,martyone/sailfish-qtcreator,farseerri/git_code,xianian/qt-creator,azat/qtcreator,azat/qtcreator,kuba1/qtcreator,KDE/android-qt-creator,Distrotech/qtcreator,jonnor/qt-creator,hdweiss/qt-creator-visualizer,azat/qtcreator,danimo/qt-creator,omniacreator/qtcreator,syntheticpp/qt-creator,omniacreator/qtcreator,KDE/android-qt-creator,danimo/qt-creator,xianian/qt-creator,Distrotech/qtcreator,Distrotech/qtcreator,amyvmiwei/qt-creator,duythanhphan/qt-creator,AltarBeastiful/qt-creator,richardmg/qtcreator,amyvmiwei/qt-creator,amyvmiwei/qt-creator,martyone/sailfish-qtcreator,malikcjm/qtcreator,KDE/android-qt-creator,martyone/sailfish-qtcreator,jonnor/qt-creator,KDAB/KDAB-Creator,hdweiss/qt-creator-visualizer,AltarBeastiful/qt-creator,colede/qtcreator,duythanhphan/qt-creator,duythanhphan/qt-creator,farseerri/git_code,xianian/qt-creator,omniacreator/qtcreator,martyone/sailfish-qtcreator,richardmg/qtcreator,richardmg/qtcreator,KDE/android-qt-creator,AltarBeastiful/qt-creator,kuba1/qtcreator,danimo/qt-creator,KDAB/KDAB-Creator,ostash/qt-creator-i18n-uk,syntheticpp/qt-creator,syntheticpp/qt-creator,xianian/qt-creator,duythanhphan/qt-creator,KDAB/KDAB-Creator,darksylinc/qt-creator,ostash/qt-creator-i18n-uk,ostash/qt-creator-i18n-uk,ostash/qt-creator-i18n-uk,maui-packages/qt-creator,martyone/sailfish-qtcreator,richardmg/qtcreator,richardmg/qtcreator,colede/qtcreator,danimo/qt-creator,malikcjm/qtcreator,duythanhphan/qt-creator,farseerri/git_code,malikcjm/qtcreator,colede/qtcreator,xianian/qt-creator,kuba1/qtcreator,darksylinc/qt-creator,omniacreator/qtcreator,AltarBeastiful/qt-creator,AltarBeastiful/qt-creator,KDAB/KDAB-Creator,ostash/qt-creator-i18n-uk,kuba1/qtcreator,kuba1/qtcreator,hdweiss/qt-creator-visualizer,KDE/android-qt-creator,jonnor/qt-creator,hdweiss/qt-creator-visualizer,maui-packages/qt-creator,Distrotech/qtcreator,xianian/qt-creator,colede/qtcreator,omniacreator/qtcreator,AltarBeastiful/qt-creator,amyvmiwei/qt-creator,martyone/sailfish-qtcreator,ostash/qt-creator-i18n-uk,maui-packages/qt-creator,farseerri/git_code,amyvmiwei/qt-creator,jonnor/qt-creator,danimo/qt-creator,danimo/qt-creator,amyvmiwei/qt-creator,xianian/qt-creator,Distrotech/qtcreator,darksylinc/qt-creator,danimo/qt-creator,danimo/qt-creator,jonnor/qt-creator,malikcjm/qtcreator,maui-packages/qt-creator,amyvmiwei/qt-creator,martyone/sailfish-qtcreator,xianian/qt-creator,darksylinc/qt-creator,darksylinc/qt-creator,darksylinc/qt-creator,syntheticpp/qt-creator,xianian/qt-creator,syntheticpp/qt-creator,kuba1/qtcreator,azat/qtcreator,KDAB/KDAB-Creator,malikcjm/qtcreator,syntheticpp/qt-creator,farseerri/git_code,hdweiss/qt-creator-visualizer,farseerri/git_code,KDE/android-qt-creator,farseerri/git_code,maui-packages/qt-creator,maui-packages/qt-creator,omniacreator/qtcreator,richardmg/qtcreator,darksylinc/qt-creator,Distrotech/qtcreator,ostash/qt-creator-i18n-uk,martyone/sailfish-qtcreator,malikcjm/qtcreator,amyvmiwei/qt-creator,omniacreator/qtcreator,KDE/android-qt-creator,AltarBeastiful/qt-creator,colede/qtcreator,duythanhphan/qt-creator,colede/qtcreator,syntheticpp/qt-creator,colede/qtcreator,AltarBeastiful/qt-creator,azat/qtcreator,KDE/android-qt-creator,Distrotech/qtcreator,kuba1/qtcreator