Removed extra added postcode manager dbus service

In current code, Extra Postcode manager dbus service name
had added for our multi host systems which have 4 hosts[1-4]
Ex : PostCode0, PostCode[1-4].

PostCode0 is not needed for our multi host system.
So, this change removes the extra PostCode0 dbus services
by removing default PostCode.service file.

As per design, dbus service naming conventions as follows
single host - xyz.openbmc_project.State.Boot.PostCode0
multi host system - xyz.openbmc_project.State.Boot.PostCode1
                    xyz.openbmc_project.State.Boot.PostCode2
                    xyz.openbmc_project.State.Boot.PostCode3
                    xyz.openbmc_project.State.Boot.PostCode4(N)

xyz.openbmc_project.State.Boot.PostCode0 was added additionally
for multi host systems which has been removed in this patch

TESTED : Verified all host postcode dbus services are displayed
correctly and tested in Facebook YosemiteV2/Tiogapass platform

Signed-off-by: Kumar Thangavel <thangavel.k@hcl.com>
Change-Id: I8ba9674cd8cd124b659649526aace093684ad612
diff --git a/meta-phosphor/recipes-phosphor/state/phosphor-post-code-manager_git.bb b/meta-phosphor/recipes-phosphor/state/phosphor-post-code-manager_git.bb
index 409b56e..37c6f8e 100644
--- a/meta-phosphor/recipes-phosphor/state/phosphor-post-code-manager_git.bb
+++ b/meta-phosphor/recipes-phosphor/state/phosphor-post-code-manager_git.bb
@@ -14,11 +14,8 @@
 inherit meson pkgconfig systemd
 
 def get_service(d):
-    service_list = "xyz.openbmc_project.State.Boot.PostCode.service xyz.openbmc_project.State.Boot.PostCode@.service "
-    if(d.getVar('OBMC_HOST_INSTANCES') == '0'):
-      return service_list
-    else:
-      return service_list+" ".join(["xyz.openbmc_project.State.Boot.PostCode@{}.service".format(x) for x in d.getVar('OBMC_HOST_INSTANCES').split()])
+    return " ".join(["xyz.openbmc_project.State.Boot.PostCode@{}.service".format(x) for x in d.getVar('OBMC_HOST_INSTANCES').split()])
+
 SYSTEMD_SERVICE:${PN} = "${@get_service(d)}"
 DEPENDS += " \
     sdbusplus \
@@ -26,3 +23,5 @@
     phosphor-logging \
     libcereal \
     "
+FILES:${PN}  += "${systemd_system_unitdir}/xyz.openbmc_project.State.Boot.PostCode@.service"
+FILES:${PN}  += "${systemd_system_unitdir}/xyz.openbmc_project.State.Boot.PostCode.service"