x11-plugins/pidgin-sipe: remove unused patches.

Closes: https://github.com/gentoo/gentoo/pull/5827

x11-plugins/pidgin-sipe/files/pidgin-sipe-1.13.2-fix-sandbox-r1.patch

@@ -1,29 +0,0 @@
-# Fix possible sandbox violation when snippet tries to probe for plugins
-# Gentoo Bug 409559
-
---- pidgin-sipe-1.13.2/configure.ac	2012-03-14 21:53:10.000000000 +0000
-+++ pidgin-sipe-1.13.2.new2/configure.ac	2012-06-30 22:48:40.081115371 +0100
-@@ -309,23 +309,6 @@
- 			 AC_MSG_CHECKING([for purple SSL support])
- 			 ac_save_LIBS=$LIBS
- 			 LIBS="$PURPLE_LIBS"
--			 AC_RUN_IFELSE(
--				[AC_LANG_PROGRAM([[
--#include <glib.h>
--#include <plugin.h>
--#include <sslconn.h>
--						]],
--						[[
--	purple_plugins_init();
--	purple_plugins_probe(G_MODULE_SUFFIX);
--	purple_ssl_init();
--	return(purple_ssl_is_supported()?0:1);
--						]])],
--				[AC_MSG_RESULT(ok)],
--				[AC_MSG_FAILURE([your purple hasn't been compiled with SSL support.
--])
--				],
--				[AC_MSG_WARN([cross compiling: not checking])])
- 		 ])
- 
- 		 dnl check whether enable voice and video support

x11-plugins/pidgin-sipe/files/pidgin-sipe-1.20.1-fix-configure-srtp-check.patch

@@ -1,12 +0,0 @@
-Backport the change from the upstream mob branch for bug #567570
---- configure.ac
-+++ configure.ac
-@@ -409,7 +409,7 @@
- 				[AC_MSG_WARN([cross compiling: not checking])])
- 			 ])
- 
--		 AC_COMPILE_IFELSE(
-+		 AC_LINK_IFELSE(
- 			[AC_LANG_PROGRAM([[
- #include <media.h>
- 				]]