Makefile: remove bogus comment

The comment "Check files that are touched by more than one package"
was previously located right before the calls to the check-uniq-files
script. However, this script and the logic calling it have been
removed in commit 2496189a4207173e4cd5bbab90256f911175ee57 ("core:
drop check-uniq-files"), so the comment no longer makes any sense:
let's drop it.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

Makefile

@@ -736,7 +736,6 @@ staging-finalize: $(STAGING_DIR_SYMLINK)
 target-finalize: $(PACKAGES) $(TARGET_DIR) host-finalize
 	@$(call MESSAGE,"Finalizing target directory")
 	$(call per-package-rsync,$(sort $(PACKAGES)),target,$(TARGET_DIR))
-	# Check files that are touched by more than one package
 	$(foreach hook,$(TARGET_FINALIZE_HOOKS),$($(hook))$(sep))
 	rm -rf $(TARGET_DIR)/usr/include $(TARGET_DIR)/usr/share/aclocal \
 		$(TARGET_DIR)/usr/lib/pkgconfig $(TARGET_DIR)/usr/share/pkgconfig \