DiffEditor: Remove dead code
DiffEditor: Remove dead code

Change-Id: I57c61b7c5adb80ab6ffecd699cd78e1351509b07
Reviewed-by: Jarek Kobus <021d51876099fe64879cc5072886d1d0ff71e1ac@digia.com>

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