Remove old stray definitions
Fix concatenation of Unicode string literals.

Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>
network: undef EAFNOSUPPORT before overriding it.

Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>
fourcc: fix empty initializer

Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>