ipsec: Coverity warnings

Type: fix

Signed-off-by: Neale Ranns <nranns@cisco.com>
Change-Id: I6bb6c6be62f98ac9a059469c81a5f4476b96e96e
diff --git a/src/vnet/ipsec/ipsec_cli.c b/src/vnet/ipsec/ipsec_cli.c
index 630e60a..5385a0f 100644
--- a/src/vnet/ipsec/ipsec_cli.c
+++ b/src/vnet/ipsec/ipsec_cli.c
@@ -869,11 +869,8 @@
     case 0:
       break;
     case VNET_API_ERROR_INVALID_VALUE:
-      if (is_add)
-	error = clib_error_return (0,
-				   "IPSec tunnel interface already exists...");
-      else
-	error = clib_error_return (0, "IPSec tunnel interface not exists...");
+      error = clib_error_return (0,
+				 "IPSec tunnel interface already exists...");
       goto done;
     default:
       error = clib_error_return (0, "ipsec_register_interface returned %d",