[arch-dev-public] Dropping libgee06 from [extra]

Hi, Since libskk, the last reverse-dependency of libgee06 in our repos, has adopted to the libgee-0.8 API with an upstream patch, there's no package in the repos depending on this legacy library anymore. If no objection were raised, I'm going to drop libgee06 directly from [extra] to [unsupported], since some packages in the AUR might still need it for some time. Regards, Felix Yan