Windows build: removed obsolete files

sdrgui/sdrgui.pro

@@ -43,7 +43,6 @@ SOURCES += mainwindow.cpp\
         dsp/spectrumvis.cpp\
         gui/aboutdialog.cpp\
         gui/addpresetdialog.cpp\
-        gui/basicchannelsettingswidget.cpp\
         gui/basicchannelsettingsdialog.cpp\
         gui/buttonswitch.cpp\
         gui/channelwindow.cpp\
@@ -89,7 +88,6 @@ HEADERS  += mainwindow.h\
         gui/aboutdialog.h\
         gui/addpresetdialog.h\
         gui/audiodialog.h\
-        gui/basicchannelsettingswidget.h\
         gui/basicchannelsettingsdialog.h\
         gui/buttonswitch.h\
         gui/channelwindow.h\
@@ -126,7 +124,6 @@ HEADERS  += mainwindow.h\
 FORMS    += mainwindow.ui\
         gui/scopewindow.ui\
         gui/addpresetdialog.ui\
-        gui/basicchannelsettingswidget.ui\
         gui/basicchannelsettingsdialog.ui\
         gui/cwkeyergui.ui\
         gui/externalclockdialog.ui\