EDAC/altera: Remove MODULE_LICENSE in non-module

Since

  8b41fc44 ("kbuild: create modules.builtin without Makefile.modbuiltin or tristate.conf"),

MODULE_LICENSE declarations are used to identify modules. As
a consequence, uses of the macro in non-modules will cause modprobe to
misidentify their containing object file as a module when it is not
(false positives), and modprobe might succeed rather than failing with
a suitable error message.

altera_edac is not a module for a while now, remove the macro call.

Suggested-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Nick Alcock <nick.alcock@oracle.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20230217141059.392471-24-nick.alcock@oracle.com