[arch-dev-public] Drop windowmaker-crm-git from [extra], use windowmaker package

Hi, now that Window Maker development resumed and the new source for the official Window Maker package is the git repository of crm, there is no need anymore to have the crm-git package in the [extra] repository beside the official stable package. I will move it to AUR soon and will maintain it at the AUR. To all the users of the windowmaker-crm-git package, please install the windowmaker package from the [extra] repository, which is the latest stable source from windowmaker.org and even newer than the crm-git package. All features which are in the crm-git package are merged to the official windowmaker package because of the same source. -Daniel