Remove dependency to the system manager service

The GPIOs have moved out of the system manager's D-Bus object
and the skeleton apps have been updated to get the information
from json
(ref: openbmc/skeleton 0f3fd5aa2d41a1b1bde5df471db74519ec82ef35).

Remove the dependency out of the service files since it's not
needed anymore.

Tested: Verified there were no errors when removing the system
manager app.

Change-Id: I1da5e394ebea4f4eba26e66abf416ad0d49795fe
Signed-off-by: Adriana Kobylak <anoo@us.ibm.com>
diff --git a/recipes-phosphor/chassis/obmc-button-power/org.openbmc.buttons.Power@.service b/recipes-phosphor/chassis/obmc-button-power/org.openbmc.buttons.Power@.service
index 443ecbb..fad4f13 100644
--- a/recipes-phosphor/chassis/obmc-button-power/org.openbmc.buttons.Power@.service
+++ b/recipes-phosphor/chassis/obmc-button-power/org.openbmc.buttons.Power@.service
@@ -1,7 +1,5 @@
 [Unit]
 Description=Phosphor Power Button%i
-Wants=mapper-wait@-org-openbmc-managers-System.service
-After=mapper-wait@-org-openbmc-managers-System.service
 
 [Service]
 Restart=always
diff --git a/recipes-phosphor/chassis/obmc-button-reset/org.openbmc.buttons.reset@.service b/recipes-phosphor/chassis/obmc-button-reset/org.openbmc.buttons.reset@.service
index e535e65..395eeb9 100644
--- a/recipes-phosphor/chassis/obmc-button-reset/org.openbmc.buttons.reset@.service
+++ b/recipes-phosphor/chassis/obmc-button-reset/org.openbmc.buttons.reset@.service
@@ -1,7 +1,5 @@
 [Unit]
 Description=Phosphor Reset Button%i
-Wants=mapper-wait@-org-openbmc-managers-System.service
-After=mapper-wait@-org-openbmc-managers-System.service
 
 [Service]
 Restart=always
diff --git a/recipes-phosphor/chassis/obmc-op-control-power/org.openbmc.control.Power@.service b/recipes-phosphor/chassis/obmc-op-control-power/org.openbmc.control.Power@.service
index 95ef0b8..9903e6e 100644
--- a/recipes-phosphor/chassis/obmc-op-control-power/org.openbmc.control.Power@.service
+++ b/recipes-phosphor/chassis/obmc-op-control-power/org.openbmc.control.Power@.service
@@ -1,7 +1,5 @@
 [Unit]
 Description=Phosphor Power%i Control
-Wants=mapper-wait@-org-openbmc-managers-System.service
-After=mapper-wait@-org-openbmc-managers-System.service
 
 [Service]
 EnvironmentFile={envfiledir}/obmc/power_control
diff --git a/recipes-phosphor/host/obmc-op-control-host/org.openbmc.control.Host@.service b/recipes-phosphor/host/obmc-op-control-host/org.openbmc.control.Host@.service
index 9a64002..e922711 100644
--- a/recipes-phosphor/host/obmc-op-control-host/org.openbmc.control.Host@.service
+++ b/recipes-phosphor/host/obmc-op-control-host/org.openbmc.control.Host@.service
@@ -1,7 +1,5 @@
 [Unit]
 Description=OpenPOWER Host%i Control
-Wants=mapper-wait@-org-openbmc-managers-System.service
-After=mapper-wait@-org-openbmc-managers-System.service
 
 [Service]
 Restart=always