remove unused headers

src/gui/gui.pri

@@ -35,17 +35,15 @@ HEADERS      += src/gui/UBThumbnailView.h \
                 src/gui/UBLeftPalette.h \
                 src/gui/UBRightPalette.h \
                 src/gui/UBPageNavigationWidget.h \
-                src/gui/UBLibWidget.h \
                 src/gui/UBMagnifer.h \
                 src/gui/UBCachePropertiesWidget.h \
-                src/gui/UBLibWebView.h \
                 src/gui/UBDownloadWidget.h \
                 src/gui/UBDockDownloadWidget.h \
-		src/gui/UBFeaturesWidget.h \
-		src/gui/UBFeaturesActionBar.h \
-    src/gui/UBDockTeacherGuideWidget.h \
-    src/gui/UBTeacherGuideWidget.h \
-    src/gui/UBTeacherGuideWidgetsTools.h \
+                src/gui/UBFeaturesWidget.h \
+                src/gui/UBFeaturesActionBar.h \
+                src/gui/UBDockTeacherGuideWidget.h \
+                src/gui/UBTeacherGuideWidget.h \
+                src/gui/UBTeacherGuideWidgetsTools.h \
                 src/gui/UBMessagesDialog.h
                 
 SOURCES      += src/gui/UBThumbnailView.cpp \
@@ -88,11 +86,11 @@ SOURCES      += src/gui/UBThumbnailView.cpp \
                 src/gui/UBCachePropertiesWidget.cpp \
                 src/gui/UBDownloadWidget.cpp \
                 src/gui/UBDockDownloadWidget.cpp \
-		src/gui/UBFeaturesWidget.cpp \
-		src/gui/UBFeaturesActionBar.cpp \
-    src/gui/UBDockTeacherGuideWidget.cpp \
-    src/gui/UBTeacherGuideWidget.cpp \
-    src/gui/UBTeacherGuideWidgetsTools.cpp \
+                src/gui/UBFeaturesWidget.cpp \
+                src/gui/UBFeaturesActionBar.cpp \
+                src/gui/UBDockTeacherGuideWidget.cpp \
+                src/gui/UBTeacherGuideWidget.cpp \
+                src/gui/UBTeacherGuideWidgetsTools.cpp \
                 src/gui/UBMessagesDialog.cpp
 
 win32 {