phosphor-ipmi-host: Remove HostIpmi requirement

We have systems that have no host present, but require the use of the
network ipmi functionality. This requirement doesn't work for these
systems since they don't have a host transfer mechanism.

This doesn't change the ordering requirements of the services.

Change-Id: I6214077a7a986c786fd21307f5822e0a88176fc6
Signed-off-by: William A. Kennington III <wak@google.com>
diff --git a/recipes-phosphor/ipmi/phosphor-ipmi-host/phosphor-ipmi-host.service b/recipes-phosphor/ipmi/phosphor-ipmi-host/phosphor-ipmi-host.service
index 62687d6..ab89831 100644
--- a/recipes-phosphor/ipmi/phosphor-ipmi-host/phosphor-ipmi-host.service
+++ b/recipes-phosphor/ipmi/phosphor-ipmi-host/phosphor-ipmi-host.service
@@ -11,7 +11,6 @@
 After=mapper-wait@-xyz-openbmc_project-control-host0-restriction_mode.service
 Wants=clear-once.service
 After=clear-once.service
-Requires=org.openbmc.HostIpmi.service
 After=org.openbmc.HostIpmi.service
 
 [Service]