Remove duplicate variables

Fixes the following:
   - Update Setting URI
   - removing DBUS variables duplicates

Resolves openbmc/openbmc-test-automation#263

Change-Id: If471d681fc89549a66611889874c09eb9bbc0e21
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/lib/utils.robot b/lib/utils.robot
index fe4e0f4..8cb4d71 100755
--- a/lib/utils.robot
+++ b/lib/utils.robot
@@ -13,7 +13,7 @@
 ${dbuscmdBase}
 ...  dbus-send --system --print-reply --dest=${OPENBMC_BASE_DBUS}.settings.Host
 ${dbuscmdGet}
-...  ${OPENBMC_BASE_URI}settings/host0  org.freedesktop.DBus.Properties.Get
+...  ${SETTINGS_URI}host0  org.freedesktop.DBus.Properties.Get
 # Enable when ready with openbmc/openbmc-test-automation#203
 #${dbuscmdString}=  string:"xyz.openbmc_project.settings.Host" string:
 ${dbuscmdString}=   string:"org.openbmc.settings.Host" string:
@@ -21,9 +21,6 @@
 
 # Assign default value to QUIET for programs which may not define it.
 ${QUIET}  ${0}
-${dbuscmdBase}=    dbus-send --system --print-reply --dest=org.openbmc.settings.Host
-${dbuscmdGet}=   /org/openbmc/settings/host0  org.freedesktop.DBus.Properties.Get
-${dbuscmdString}=   string:"org.openbmc.settings.Host" string:
 ${bmc_mem_free_cmd}=   free | tr -s ' ' | sed '/^Mem/!d' | cut -d" " -f4
 ${bmc_mem_total_cmd}=   free | tr -s ' ' | sed '/^Mem/!d' | cut -d" " -f2
 ${bmc_cpu_usage_cmd}=   top -n 1  | grep CPU: | cut -c 7-9