don't build shared demo library which is not used anyway

this amends 5a2fc03ef4

Change-Id: I42b2141ad33b75041ee2bb58af642fc3d07f290e
Reviewed-by: hjk <hjk121@nokiamail.com>
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>

examples/widgets/painting/painting.pro

@@ -1,28 +1,15 @@
 TEMPLATE      = subdirs
 SUBDIRS       = basicdrawing \
                 concentriccircles \
-                examples_affine \
-                examples_composition \
-                examples_deform \
-                examples_gradients \
-                examples_pathstroke \
-                painting_shared \
+                affine \
+                composition \
+                deform \
+                gradients \
+                pathstroke \
                 imagecomposition \
                 painterpaths \
                 transformations \
                 fontsampler
 
-examples_affine.subdir = affine
-examples_composition.subdir = composition
-examples_deform.subdir = deform
-examples_gradients.subdir = gradients
-examples_pathstroke.subdir = pathstroke
-painting_shared.subdir = shared
-
-!ordered {
-    examples_affine.depends = painting_shared
-    examples_deform.depends = painting_shared
-    examples_gradients.depends = painting_shared
-    examples_composition.depends = painting_shared
-    examples_pathstroke.depends = painting_shared
-}
+EXAMPLE_FILES = \
+    shared

examples/widgets/painting/shared/shared.pro

@@ -1,26 +0,0 @@
-TEMPLATE = lib
-CONFIG += static
-
-qtHaveModule(opengl) {
-	DEFINES += QT_OPENGL_SUPPORT
-	QT += opengl
-}
-QT += widgets
-
-build_all:!build_pass {
-    CONFIG -= build_all
-    CONFIG += release
-}
-TARGET = demo_shared
-
-SOURCES += \
-	arthurstyle.cpp\
-	arthurwidgets.cpp \
-	hoverpoints.cpp
-
-HEADERS += \
-	arthurstyle.h \
-	arthurwidgets.h \
-	hoverpoints.h
-
-RESOURCES += shared.qrc