Remove deprecated code and make use of `syspaths`.
No hard coded paths. Refs the salt-cloud merge.
Remove deprecated code.
Deprecate `vm_config*` config  var in favor of `profiles_config*`.
Salt Cloud, as Salt, now uses a common configuration directory.

Passing single configuration files to the CLI tool is deprecated and will be removed in Salt Helium.
Use the new form of passing the configuration file.
Merge pull request #8801 from s0undt3ch/hotfix/deprecate-salt-cloud-config-file

Deprecate salt cloud split config files to CLI tool