packages: drop nodogsplash, it moved to the openwrt-routing feed

git-svn-id: svn://svn.openwrt.org/openwrt@36611 3c298f89-4303-0410-b956-a3cf2f4a3e73
Revert "[package] shadow: rework Makefile" (should fix #13515)

This reverts commit 8c286b154eb0c4cf7e7d5e6f2cd8e33776188916.

git-svn-id: svn://svn.openwrt.org/openwrt@36612 3c298f89-4303-0410-b956-a3cf2f4a3e73