Code cleanup

sflphone-client-kde/src/CMakeLists.txt

sflphone-client-kde/src/CodecListModel.cpp

sflphone-client-kde/src/CodecListModel.h

sflphone-client-kde/src/conf/ConfigurationDialog.cpp

sflphone-client-kde/src/conf/ConfigurationDialog.h

sflphone-client-kde/src/conf/ConfigurationSkeleton.cpp

sflphone-client-kde/src/conf/ConfigurationSkeleton.h

sflphone-client-kde/src/conf/dlgaccounts.cpp

sflphone-client-kde/src/conf/dlgaccounts.h

sflphone-client-kde/src/conf/dlgaddressbook.cpp

sflphone-client-kde/src/conf/dlgaddressbook.h

sflphone-client-kde/src/conf/dlgaudio.cpp

sflphone-client-kde/src/conf/dlgaudio.h

sflphone-client-kde/src/conf/dlgdisplay.cpp

sflphone-client-kde/src/conf/dlgdisplay.h

sflphone-client-kde/src/conf/dlggeneral.cpp

sflphone-client-kde/src/conf/dlggeneral.h

sflphone-client-kde/src/conf/dlghooks.cpp

sflphone-client-kde/src/conf/dlghooks.h

sflphone-client-kde/src/conf/dlgrecord.cpp