valgrind: don't remove TARGET_DIR/usr/lib/pkgconfig

There's no need for removing the pkgconfig files in valgrind.mk
as that is now handled by the generic BR2_HAVE_DEVFILES.

package/valgrind/valgrind.mk

@@ -64,11 +64,6 @@ $(TARGET_DIR)/usr/bin/valgrind: $(VALGRIND_DIR)/coregrind/valgrind
 	cp package/valgrind/valgrind.sh $(TARGET_DIR)/usr/bin/valgrind
 	chmod a+x $(TARGET_DIR)/usr/bin/valgrind
 	rm -rf $(TARGET_DIR)/usr/share/doc/valgrind
-	rm -rf $(TARGET_DIR)/usr/lib/pkgconfig
-	#mkdir -p $(TARGET_DIR)/etc/default
-	#cp $(VALGRIND_DIR)/valgrind.default $(TARGET_DIR)/etc/default/valgrind
-	#mkdir -p $(TARGET_DIR)/usr/lib/valgrind
-	#cp $(VALGRIND_DIR)/woody.supp $(TARGET_DIR)/usr/lib/valgrind/
 	touch -c $@
 
 valgrind: $(TARGET_DIR)/usr/bin/valgrind