resilient: drop unused patch

It has been moved to component/rdiff-backup, but it was been forgotten to clean it here

stack/resilient/rdiff-backup-1.3.4-librsync-1.0.0.patch

-Patch by Roman Tereshonkov and Kari Hautio for rdiff-backup <= 1.2.8 to avoid a build failure with
-librsync >= 1.0.0 (which is a security bugfix release). The discussion and solution finding can be
-found at https://bugs.launchpad.net/duplicity/+bug/1416344 (for duplicity).
-
---- rdiff-backup-1.3.4/rdiff_backup/_librsyncmodule.c			2009-03-16 15:36:21.000000000 +0100
-+++ rdiff-backup-1.3.4/rdiff_backup/_librsyncmodule.c.librsync-1.0.0		2015-03-02 00:54:24.000000000 +0100
-@@ -59,8 +59,13 @@
-   if (sm == NULL) return NULL;
-   sm->x_attr = NULL;
- 
-+#ifdef RS_DEFAULT_STRONG_LEN
-   sm->sig_job = rs_sig_begin((size_t)blocklen,
- 							 (size_t)RS_DEFAULT_STRONG_LEN);
-+#else
-+  sm->sig_job = rs_sig_begin((size_t)blocklen,
-+							 (size_t)8, RS_MD4_SIG_MAGIC);
-+#endif
-   return (PyObject*)sm;
- }
-