meta-phosphor: distro: remove obmc-settings-mgmt

Remove VIRTUAL-RUNTIME_obmc-settings-mgmt.  phosphor-settings-manager is
the de-facto standard for settings management in OpenBMC.

This is a minor improvement to ease of consumption and
comprehensibility.  If a popular alternative to
phosphor-settings-manager emerges, revisit the need for this abstraction
then.  For un-popular alternatives, bitbake still provides the means for
doing this entirely in downstream layers.

Change-Id: I97317df280fe45a47a810c0e09a10999d2e0205f
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/recipes-phosphor/datetime/phosphor-time-manager_git.bb b/recipes-phosphor/datetime/phosphor-time-manager_git.bb
index 9fbd287..2dc6303 100644
--- a/recipes-phosphor/datetime/phosphor-time-manager_git.bb
+++ b/recipes-phosphor/datetime/phosphor-time-manager_git.bb
@@ -15,7 +15,7 @@
 DEPENDS += "sdbusplus-native"
 DEPENDS += "phosphor-logging"
 DEPENDS += "phosphor-dbus-interfaces"
-RDEPENDS_${PN} += "${VIRTUAL-RUNTIME_obmc-settings-mgmt}"
+RDEPENDS_${PN} += "phosphor-settings-manager"
 RDEPENDS_${PN} += "phosphor-network"
 RDEPENDS_${PN} += "phosphor-mapper"