analyzer: remove unused DockWidgetEventFilter
analyzer: remove unused DockWidgetEventFilter

Change-Id: I0ddcd555efc900905703669040f792fb7c4d95c9
Reviewed-on: http://codereview.qt.nokia.com/909
Reviewed-by: hjk <6fac1c92f5b9c7890a04d7f8a9d8912d16355eac@ovi.com>

AltarBeastiful/qt-creator,colede/qtcreator,KDE/android-qt-creator,duythanhphan/qt-creator,richardmg/qtcreator,azat/qtcreator,AltarBeastiful/qt-creator,jonnor/qt-creator,jonnor/qt-creator,syntheticpp/qt-creator,bakaiadam/collaborative_qt_creator,ostash/qt-creator-i18n-uk,hdweiss/qt-creator-visualizer,omniacreator/qtcreator,ostash/qt-creator-i18n-uk,ostash/qt-creator-i18n-uk,duythanhphan/qt-creator,xianian/qt-creator,darksylinc/qt-creator,martyone/sailfish-qtcreator,xianian/qt-creator,danimo/qt-creator,malikcjm/qtcreator,AltarBeastiful/qt-creator,KDE/android-qt-creator,farseerri/git_code,KDAB/KDAB-Creator,ostash/qt-creator-i18n-uk,colede/qtcreator,ostash/qt-creator-i18n-uk,KDAB/KDAB-Creator,omniacreator/qtcreator,hdweiss/qt-creator-visualizer,malikcjm/qtcreator,kuba1/qtcreator,darksylinc/qt-creator,maui-packages/qt-creator,danimo/qt-creator,xianian/qt-creator,malikcjm/qtcreator,darksylinc/qt-creator,jonnor/qt-creator,darksylinc/qt-creator,omniacreator/qtcreator,bakaiadam/collaborative_qt_creator,colede/qtcreator,farseerri/git_code,KDE/android-qt-creator,omniacreator/qtcreator,omniacreator/qtcreator,maui-packages/qt-creator,KDE/android-qt-creator,farseerri/git_code,Distrotech/qtcreator,amyvmiwei/qt-creator,kuba1/qtcreator,colede/qtcreator,ostash/qt-creator-i18n-uk,KDE/android-qt-creator,amyvmiwei/qt-creator,jonnor/qt-creator,richardmg/qtcreator,danimo/qt-creator,omniacreator/qtcreator,dmik/qt-creator-os2,duythanhphan/qt-creator,omniacreator/qtcreator,dmik/qt-creator-os2,AltarBeastiful/qt-creator,hdweiss/qt-creator-visualizer,richardmg/qtcreator,xianian/qt-creator,bakaiadam/collaborative_qt_creator,darksylinc/qt-creator,jonnor/qt-creator,colede/qtcreator,xianian/qt-creator,amyvmiwei/qt-creator,colede/qtcreator,azat/qtcreator,dmik/qt-creator-os2,danimo/qt-creator,AltarBeastiful/qt-creator,ostash/qt-creator-i18n-uk,kuba1/qtcreator,farseerri/git_code,azat/qtcreator,dmik/qt-creator-os2,kuba1/qtcreator,dmik/qt-creator-os2,maui-packages/qt-creator,amyvmiwei/qt-creator,Distrotech/qtcreator,martyone/sailfish-qtcreator,Distrotech/qtcreator,kuba1/qtcreator,richardmg/qtcreator,danimo/qt-creator,bakaiadam/collaborative_qt_creator,farseerri/git_code,Distrotech/qtcreator,richardmg/qtcreator,malikcjm/qtcreator,KDAB/KDAB-Creator,syntheticpp/qt-creator,hdweiss/qt-creator-visualizer,KDE/android-qt-creator,kuba1/qtcreator,azat/qtcreator,kuba1/qtcreator,xianian/qt-creator,AltarBeastiful/qt-creator,martyone/sailfish-qtcreator,KDE/android-qt-creator,danimo/qt-creator,syntheticpp/qt-creator,martyone/sailfish-qtcreator,kuba1/qtcreator,duythanhphan/qt-creator,maui-packages/qt-creator,danimo/qt-creator,darksylinc/qt-creator,AltarBeastiful/qt-creator,martyone/sailfish-qtcreator,dmik/qt-creator-os2,xianian/qt-creator,xianian/qt-creator,martyone/sailfish-qtcreator,martyone/sailfish-qtcreator,syntheticpp/qt-creator,martyone/sailfish-qtcreator,KDE/android-qt-creator,KDAB/KDAB-Creator,malikcjm/qtcreator,Distrotech/qtcreator,bakaiadam/collaborative_qt_creator,amyvmiwei/qt-creator,richardmg/qtcreator,syntheticpp/qt-creator,amyvmiwei/qt-creator,azat/qtcreator,jonnor/qt-creator,danimo/qt-creator,malikcjm/qtcreator,Distrotech/qtcreator,amyvmiwei/qt-creator,colede/qtcreator,azat/qtcreator,farseerri/git_code,AltarBeastiful/qt-creator,martyone/sailfish-qtcreator,malikcjm/qtcreator,syntheticpp/qt-creator,darksylinc/qt-creator,syntheticpp/qt-creator,farseerri/git_code,maui-packages/qt-creator,hdweiss/qt-creator-visualizer,Distrotech/qtcreator,hdweiss/qt-creator-visualizer,KDAB/KDAB-Creator,darksylinc/qt-creator,duythanhphan/qt-creator,danimo/qt-creator,duythanhphan/qt-creator,duythanhphan/qt-creator,bakaiadam/collaborative_qt_creator,xianian/qt-creator,richardmg/qtcreator,maui-packages/qt-creator,amyvmiwei/qt-creator,kuba1/qtcreator,KDAB/KDAB-Creator,bakaiadam/collaborative_qt_creator,dmik/qt-creator-os2,farseerri/git_code,maui-packages/qt-creator