remove sexpr2string.patch now that it is in 0.7.1

OBS-URL: https://build.opensuse.org/package/show/Virtualization/libvirt?expand=0&rev=12

sexpr2string.patch

@@ -1,27 +0,0 @@
-From 1a1f8b9dbb68bf43c831e471ab4308d81a113ecd Mon Sep 17 00:00:00 2001
-From: Jim Fehlig <jfehlig@novell.com>
-Date: Tue, 25 Aug 2009 15:54:18 -0600
-Subject: [PATCH] Fix sexpr2string() to handle empty list.
-
-S-expression containing empty lists, e.g. (cpus (() () () ())),
-was not being handled properly in sexpr2string() serialization.
-Emit an empty list when encountering NIL sexpr kind.
----
- src/sexpr.c |    4 ++++
- 1 files changed, 4 insertions(+), 0 deletions(-)
-
-Index: libvirt-0.7.0/src/sexpr.c
-===================================================================
---- libvirt-0.7.0.orig/src/sexpr.c
-+++ libvirt-0.7.0/src/sexpr.c
-@@ -255,6 +255,10 @@ sexpr2string(const struct sexpr * sexpr,
-             ret += tmp;
-             break;
-         case SEXPR_NIL:
-+            tmp = snprintf(buffer + ret, n_buffer - ret, "()");
-+            if (tmp == 0)
-+                goto error;
-+            ret += tmp;
-             break;
-         default:
-             goto error;