meta-ibm:fans: Use proper path names in svc files

/usr/bin/env is now an antipattern.

Signed-off-by: Matt Spinler <spinler@us.ibm.com>
Change-Id: I7e8488b984db0258f68107b23a0e3a7ed149f763
diff --git a/meta-ibm/recipes-phosphor/fans/fan-watchdog/fan-watchdog-monitor@.service b/meta-ibm/recipes-phosphor/fans/fan-watchdog/fan-watchdog-monitor@.service
index 945561b..7bea3a9 100644
--- a/meta-ibm/recipes-phosphor/fans/fan-watchdog/fan-watchdog-monitor@.service
+++ b/meta-ibm/recipes-phosphor/fans/fan-watchdog/fan-watchdog-monitor@.service
@@ -6,5 +6,4 @@
 
 [Service]
 Type=oneshot
-ExecStart=/usr/bin/env phosphor-unit-failure-monitor --source %i --target obmc-fan-watchdog-takeover.target --action start
-SyslogIdentifier=phosphor-unit-failure-monitor
+ExecStart=/usr/bin/phosphor-unit-failure-monitor --source %i --target obmc-fan-watchdog-takeover.target --action start