only use the file version of json template

Issue-ID: TEST-158
Change-Id: Ib172145fe3e5d77bd688505b145ca1709422366a
Signed-off-by: DR695H <dr695h@att.com>
diff --git a/robot/resources/aai/create_customer.robot b/robot/resources/aai/create_customer.robot
index fec5884..7854775 100644
--- a/robot/resources/aai/create_customer.robot
+++ b/robot/resources/aai/create_customer.robot
@@ -6,7 +6,6 @@
 Resource   aai_interface.robot
 Resource   ../json_templater.robot
 Library    Collections
-Library    OperatingSystem
 
 
 *** Variables ***
@@ -19,9 +18,8 @@
 Create Customer
     [Documentation]    Creates a customer in A&AI
     [Arguments]    ${customer_name}  ${customer_id}  ${customer_type}    ${service_type}      ${clouder_owner}    ${cloud_region_id}    ${tenant_id}
-    ${data_template}=    OperatingSystem.Get File    ${A&AI ADD CUSTOMER BODY}
     ${arguments}=    Create Dictionary    subscriber_name=${customer_name}    global_customer_id=${customer_id}    subscriber_type=${customer_type}     cloud_owner1=${clouder_owner}  cloud_region_id1=${cloud_region_id}    tenant_id1=${tenant_id}    service1=${service_type}
-    ${data}=	Fill JSON Template    ${data_template}    ${arguments}
+    ${data}=	Fill JSON Template File    ${A&AI ADD CUSTOMER BODY}    ${arguments}
 	${put_resp}=    Run A&AI Put Request     ${INDEX PATH}${ROOT_CUSTOMER_PATH}${customer_id}    ${data}
     Should Be Equal As Strings 	${put_resp.status_code} 	201
 	[Return]  ${put_resp.status_code}