app-admin/sagan: remove unused patch

Closes: https://github.com/gentoo/gentoo/pull/1796

Signed-off-by: Patrice Clement <monsieurp@gentoo.org>

app-admin/sagan/files/json_header_location.patch

@@ -1,26 +0,0 @@
-diff --git a/configure.ac b/configure.ac
---- a/configure.ac
-+++ b/configure.ac
-@@ -194,7 +194,7 @@
- if test "$LOGNORM" = "yes"; then
-        AC_MSG_RESULT([------- liblognorm support is enabled -------])
-        AC_CHECK_HEADER([liblognorm.h])
--       AC_CHECK_HEADERS([json/json.h json.h], [break], [AC_MSG_ERROR([json-c headers not found or not usable.
-+       AC_CHECK_HEADERS([json-c/json.h json.h], [break], [AC_MSG_ERROR([json-c headers not found or not usable.
- This library is important for the correlation aspects of Sagan! Please see
- https://wiki.quadrantsec.com/bin/view/Main/LibLogNorm. To disable this feature
- use the --disable-lognorm flag.])]) 
-diff --git a/src/sagan-liblognorm.c b/src/sagan-liblognorm.c
---- a/src/sagan-liblognorm.c
-+++ b/src/sagan-liblognorm.c
-@@ -40,9 +40,7 @@
- #include <lognorm.h>
- 
- #if defined(HAVE_JSON_JSON_H)
--#  include <json/json.h>
--#else
--#  include <json.h>
-+#  include <json-c/json.h>
- #endif
- 
- #include "sagan.h"