REST client lib delete request correction

Resolves openbmc/openbmc-test-automation#505

Change-Id: I6606b8c219d524987f9227c2e47abb8d84bfbde7
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/lib/rest_client.robot b/lib/rest_client.robot
index 1bb8cc8..ea75063 100644
--- a/lib/rest_client.robot
+++ b/lib/rest_client.robot
@@ -103,7 +103,7 @@
     Initialize OpenBMC    ${timeout}
     ${base_uri}=    Catenate    SEPARATOR=    ${DBUS_PREFIX}    ${uri}
     Log Request    method=Delete    base_uri=${base_uri}    args=&{kwargs}
-    ${ret}=  Put Request  openbmc  ${base_uri}  &{kwargs}  timeout=${timeout}
+    ${ret}=  Delete Request  openbmc  ${base_uri}  &{kwargs}  timeout=${timeout}
     Log Response    ${ret}
     [Return]    ${ret}