Remove autotools code to extract translation messages

Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>
(cherry picked from commit 9c69bea5dc)

src/Makefile.am

@@ -59,8 +59,3 @@ rc_DATA = krecipesui.rc
 # this is where the pixmap file goes
 pixmapdir = $(datadir)/pixmaps
 pixmap_DATA = krecipes.xpm
-
-messages: rc.cpp
-	find ./ -name \*.ui | xargs --no-run-if-empty $(EXTRACTRC) >> rc.cpp
-	$(XGETTEXT) rc.cpp `find ./ -name \*.cpp` -o $(podir)/krecipes.pot
-	rm -f rc.cpp