pci: Drop migration method

Migration is complete. Drop the message.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/doc/develop/driver-model/migration.rst b/doc/develop/driver-model/migration.rst
index 8d0bb76..8bb8601 100644
--- a/doc/develop/driver-model/migration.rst
+++ b/doc/develop/driver-model/migration.rst
@@ -75,15 +75,6 @@
 * Status: In progress
 * Deadline: 2019.07
 
-CONFIG_DM_PCI
--------------
-Deadline: 2019.07
-
-The PCI subsystem has supported driver model since mid 2015. Maintainers should
-submit patches switching over to using CONFIG_DM_PCI and other base driver
-model options in time for inclusion in the 2019.07 release.
-
-
 CONFIG_DM_VIDEO
 ---------------
 Deadline: 2019.07