Simplify clean target for dcdbpusher

dcdbpusher/Makefile

@@ -56,7 +56,7 @@ info:
 	@echo $(PLUGINS) $(PLUGIN_LIBS)
 
 clean:
-	rm -f $(PLUGIN_LIBS) $(TARGET) $(OBJS) $(shell find ./sensors -name "*.o")
+	rm -f $(PLUGIN_LIBS) $(TARGET) $(OBJS) $(foreach p,$(PLUGINS),sensors/$(p)/*.o)
 
 $(OBJS)	: %.o : %.cpp