CppTypeHierarchy: Get rid of '+' when dragging.
CppTypeHierarchy: Get rid of '+' when dragging.

Change-Id: I87ee3da9f27d5d286c843fa78334e0591549936b
Reviewed-by: Daniel Teske <d8a411aec9a206efedb4d45b75fe8d13f1e2b628@digia.com>

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