justbuild: remove stray obsolete patch.

srcpkgs/justbuild/files/1b068c12b31b4a484bf49964b3057e6466b8953a.patch

@@ -1,45 +0,0 @@
-From 1b068c12b31b4a484bf49964b3057e6466b8953a Mon Sep 17 00:00:00 2001
-From: "Klaus T. Aehlig" <aehlig@linta.de>
-Date: Sun, 27 Aug 2023 16:35:52 +0200
-Subject: [PATCH] absl: avoid off64_t
-
-... to improve portability
----
- etc/import/absl/base/TARGETS.absl |  5 +++++
- etc/patches/direct_mmap.h.diff    | 11 +++++++++++
- 2 files changed, 16 insertions(+)
- create mode 100644 etc/patches/direct_mmap.h.diff
-
-diff --git a/etc/import/absl/base/TARGETS.absl b/etc/import/absl/base/TARGETS.absl
-index 7383de5..168c1eb 100644
---- a/etc/import/absl/base/TARGETS.absl
-+++ b/etc/import/absl/base/TARGETS.absl
-@@ -366,6 +366,11 @@
-     , "raw_logging_internal"
-     ]
-   }
-+, "internal/direct_mmap.h":
-+  { "type": ["@", "rules", "patch", "file"]
-+  , "src": [["FILE", null, "internal/direct_mmap.h"]]
-+  , "patch": [["@", "patches", "", "direct_mmap.h.diff"]]
-+  }
- , "prefetch":
-   { "type": ["@", "rules", "CC", "library"]
-   , "name": ["prefetch"]
-diff --git a/etc/patches/direct_mmap.h.diff b/etc/patches/direct_mmap.h.diff
-new file mode 100644
-index 0000000..8c400e2
---- /dev/null
-+++ b/etc/patches/direct_mmap.h.diff
-@@ -0,0 +1,11 @@
-+--- direct_mmap.h.orig	2023-08-27 16:22:17.101255129 +0200
-++++ direct_mmap.h	2023-08-27 16:23:26.048355108 +0200
-+@@ -72,7 +72,7 @@
-+ // Platform specific logic extracted from
-+ // https://chromium.googlesource.com/linux-syscall-support/+/master/linux_syscall_support.h
-+ inline void* DirectMmap(void* start, size_t length, int prot, int flags, int fd,
-+-                        off64_t offset) noexcept {
-++                        int64_t offset) noexcept {
-+ #if defined(__i386__) || defined(__ARM_ARCH_3__) || defined(__ARM_EABI__) || \
-+     defined(__m68k__) || defined(__sh__) ||                                  \
-+     (defined(__hppa__) && !defined(__LP64__)) ||                             \