Revert "Mark MacroSAN Driver Unsupported"

This reverts commit 2a5cc4feff.

The 3rd Party CI is running. Therefore, the driver is being
marked supported in 'U' release.

Partially-implements: bp macrosan-driver-supported
Change-Id: Ib27f9cd869078ff36e0230a18a18ba2d37d26820
(cherry picked from commit 5075423026)

cinder/volume/drivers/macrosan/driver.py

@@ -78,9 +78,6 @@ class MacroSANBaseDriver(driver.VolumeDriver):
 
     CI_WIKI_NAME = 'MacroSAN Volume CI'
 
-    # TODO(jsbryant) Remove driver in 'V' release if CI is not fixed.
-    SUPPORTED = False
-
     def __init__(self, *args, **kwargs):
         """Initialize the driver."""
         super(MacroSANBaseDriver, self).__init__(*args, **kwargs)

doc/source/reference/support-matrix.ini

@@ -230,7 +230,7 @@ driver.kaminario=complete
 driver.lenovo=complete
 driver.linbit_linstor=complete
 driver.lvm=complete
-driver.macrosan=missing
+driver.macrosan=complete
 driver.nec=complete
 driver.netapp_ontap=complete
 driver.netapp_solidfire=complete

releasenotes/notes/macrosan_driver_unsupported-b25f7a3b8270fa61.yaml

@@ -1,14 +0,0 @@
----
-upgrade:
-  - |
-    The MacroSAN Storage driver has been marked as unsupported
-    and is now deprecated.  ``enabled_unsupported_driver`` will need
-    to be set to ``True`` in the driver's section in cinder.conf to
-    continue to use the driver.
-deprecations:
-  - |
-    The MacroSAN Storage driver has been marked as unsupported and
-    is now deprecated.  ``enable_unsupported_driver`` will need to be
-    set to ``True`` in the driver's section in cinder.conf to
-    continue to use the driver.  It its support status does not change
-    the driver will be removed in the 'V' development cycle.