bitbake: toaster: don't use sshbecontroller

Removed usage of sshbecontroller from bbcontroller, models, tests
and database schema.

(Bitbake rev: 3ee06eb7e96de5dba539ad52201867e77d06a53e)

Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: brian avery <avery.brian@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/toaster/bldcontrol/models.py

@@ -12,10 +12,8 @@ class BuildEnvironment(models.Model):
     )
 
     TYPE_LOCAL = 0
-    TYPE_SSH   = 1
     TYPE = (
         (TYPE_LOCAL, "local"),
-        (TYPE_SSH, "ssh"),
     )
 
     LOCK_FREE = 0