remove brackets around boolean condition expression

Change-Id: Ia550d4603d9520ddea84a144e5e042903456d96d
Closes-Bug: 1405319
diff --git a/lib/neutron b/lib/neutron
index 8517102..0134cbd 100644
--- a/lib/neutron
+++ b/lib/neutron
@@ -751,7 +751,7 @@
 # cleanup_neutron() - Remove residual data files, anything left over from previous
 # runs that a clean run would need to clean up
 function cleanup_neutron {
-    if [[ is_provider_network && is_ironic_hardware ]]; then
+    if is_provider_network && is_ironic_hardware; then
         for IP in $(ip addr show dev $OVS_PHYSICAL_BRIDGE | grep ' inet ' | awk '{print $2}'); do
             sudo ip addr del $IP dev $OVS_PHYSICAL_BRIDGE
             sudo ip addr add $IP dev $PUBLIC_INTERFACE