diff --git a/src/SourceBuild/patches/runtime/0001-crashinfo-use-off_t-instead-of-off64_t.patch b/src/SourceBuild/patches/runtime/0001-crashinfo-use-off_t-instead-of-off64_t.patch
deleted file mode 100644
index 6569164b8..000000000
--- a/src/SourceBuild/patches/runtime/0001-crashinfo-use-off_t-instead-of-off64_t.patch
+++ /dev/null
@@ -1,38 +0,0 @@
-From 05ad51a9be428012328a1ee199a4edaff20b5efe Mon Sep 17 00:00:00 2001
-From: Antoine Martin <dev@ayakael.net>
-Date: Tue, 12 Sep 2023 18:55:46 -0400
-Subject: [PATCH] crashinfo.cpp/crasinfounix.cpp: use off_t instead of off64_t
-
-Backport: https://github.com/dotnet/runtime/pull/101272
-
----
- src/coreclr/debug/createdump/crashinfo.cpp     | 2 +-
- src/coreclr/debug/createdump/crashinfounix.cpp | 2 +-
- 2 files changed, 2 insertions(+), 2 deletions(-)
-
-diff --git a/src/coreclr/debug/createdump/crashinfo.cpp b/src/coreclr/debug/createdump/crashinfo.cpp
-index 996f3a81935d..d1d1b0ea0218 100644
---- a/src/coreclr/debug/createdump/crashinfo.cpp
-+++ b/src/coreclr/debug/createdump/crashinfo.cpp
-@@ -803,7 +803,7 @@ CrashInfo::PageMappedToPhysicalMemory(uint64_t start)
-         }
- 
-         uint64_t pagemapOffset = (start / PAGE_SIZE) * sizeof(uint64_t);
--        uint64_t seekResult = lseek64(m_fdPagemap, (off64_t) pagemapOffset, SEEK_SET);
-+        uint64_t seekResult = lseek(m_fdPagemap, (off_t) pagemapOffset, SEEK_SET);
-         if (seekResult != pagemapOffset)
-         {
-             int seekErrno = errno;
-diff --git a/src/coreclr/debug/createdump/crashinfounix.cpp b/src/coreclr/debug/createdump/crashinfounix.cpp
-index 24b975e3d655..2f4ea079de3b 100644
---- a/src/coreclr/debug/createdump/crashinfounix.cpp
-+++ b/src/coreclr/debug/createdump/crashinfounix.cpp
-@@ -516,7 +516,7 @@ CrashInfo::ReadProcessMemory(void* address, void* buffer, size_t size, size_t* r
-         // performance optimization.
-         m_canUseProcVmReadSyscall = false;
-         assert(m_fdMem != -1);
--        *read = pread64(m_fdMem, buffer, size, (off64_t)address);
-+        *read = pread(m_fdMem, buffer, size, (off_t)address);
-     }
- 
-     if (*read == (size_t)-1)