Remove authmyspace module. The service is no longer offered.

attributemap/myspace2name.php

config-templates/authsources.php

docs/simplesamlphp-changelog.md

modules/.gitignore

modules/authmyspace/default-disable

modules/authmyspace/docs/oauthmyspace.md

modules/authmyspace/lib/Auth/Source/MySpace.php

modules/authmyspace/www/linkback.php

modules/smartattributes/docs/smartattributes.md

modules/smartattributes/lib/Auth/Process/SmartID.php