fix(cleanup initContainer): new command to delete generator.yml file

Signed-off-by: bravof <fbravo@whitestack.com>

snmp_ee_vnf/helm-charts/eechart/charts/snmpexporter/templates/deployment.yaml

@@ -17,7 +17,7 @@ spec:
       initContainers:
         - name: cleanup
           image: busybox:1.28
-          command: ['sh', '-c', 'if [ -f "/etc/snmp_exporter/generator.yml" ]; then rm /etc/snmp_exporter/generator.yml; fi']
+          command: ['sh', '-c', 'rm -f /etc/snmp_exporter/generator.yml']
           volumeMounts:
             - name: config-volume
               mountPath: /etc/snmp_exporter