Remove install-gecko.sh stub.  Now that wine-1.6 caches gecko, fewer people are going to go looking for this.  And I'd rather delete it than add a copyright at the top.
Remove install-gecko.sh stub.  Now that wine-1.6 caches gecko, fewer people are going to go looking for this.  And I'd rather delete it than add a copyright at the top.

git-svn-id: b92d2e39cfa237656594b3bc53d4cd3ef2bf6eca@1008 98bf863f-ac88-fb5c-4855-c94565d26d3c

Winetricks/winetricks,Winetricks/winetricks