Removed deprecated keyword "Execute Command On BMC"

- The keyword is no longer being used anywhere.

Change-Id: I96320c9bb693bcfe0cdf141378bc5ea42744b61b
Signed-off-by: Joy Onyerikwu <onyekachukwu.joy.onyerikwu@ibm.com>
diff --git a/lib/utils.robot b/lib/utils.robot
index 54bfc89..133654e 100755
--- a/lib/utils.robot
+++ b/lib/utils.robot
@@ -1090,18 +1090,6 @@
     [Return]  ${btime}
 
 
-Execute Command On BMC
-    [Documentation]  Execute given command on BMC and return output.
-    [Arguments]  ${command}
-
-    # Description of argument(s):
-    # command    The command to execute on the BMC.
-
-    ${stdout}  ${stderr}=  Execute Command  ${command}  return_stderr=True
-    Should Be Empty  ${stderr}
-    [Return]  ${stdout}
-
-
 Enable Core Dump On BMC
     [Documentation]  Enable core dump collection.
     ${core_pattern}  ${stderr}  ${rc}=  BMC Execute Command