Revert "icons: Fix paths"

This reverts commit f9775b538ba544936de5d78cdeaea4bc937b3293.

This patch broke installation of icons.

https://bugzilla.gnome.org/show_bug.cgi?id=722205
icons: Fix paths

This time fix `make dist` without breaking icon installation.

https://bugzilla.gnome.org/show_bug.cgi?id=722205