Remove Marc's llbuild patch from CI that was upstreamed to devel branch

Author: finagolfin

swift-android-devel.patch

@@ -1,35 +1,3 @@
-From: Marc Prud'hommeaux <[email protected]>
-Date: Wed, 7 May 2025 10:24:19 -0400
-
-diff --git a/llbuild/lib/Basic/Subprocess.cpp b/llbuild/lib/Basic/Subprocess.cpp
-index bf2fd4d1..8d4ee3de 100644
---- a/llbuild/lib/Basic/Subprocess.cpp
-+++ b/llbuild/lib/Basic/Subprocess.cpp
-@@ -79,9 +79,12 @@ int pthread_fchdir_np(int fd)
- // Implementation mostly copied from _CFPosixSpawnFileActionsChdir in swift-corelibs-foundation
- static int posix_spawn_file_actions_addchdir_polyfill(posix_spawn_file_actions_t * __restrict file_actions,
-                                                       const char * __restrict path) {
--#if defined(__GLIBC__) && !__GLIBC_PREREQ(2, 29)
-+#if (defined(__GLIBC__) && !__GLIBC_PREREQ(2, 29)) || (defined(__OpenBSD__)) || (defined(__ANDROID__) && __ANDROID_API__ < 34)
-   // Glibc versions prior to 2.29 don't support posix_spawn_file_actions_addchdir_np, impacting:
-   //  - Amazon Linux 2 (EoL mid-2025)
-+  // Currently missing as of:
-+  //  - OpenBSD 7.5 (April 2024)
-+  //  - Android <= 14
-   return ENOSYS;
- #elif defined(__APPLE__) && defined(__MAC_OS_X_VERSION_MIN_REQUIRED) && __MAC_OS_X_VERSION_MIN_REQUIRED < 101500
-   // Conditionally available on macOS if building with a deployment target older than 10.15
-@@ -89,10 +92,6 @@ static int posix_spawn_file_actions_addchdir_polyfill(posix_spawn_file_actions_t
-     return posix_spawn_file_actions_addchdir_np(file_actions, path);
-   }
-   return ENOSYS;
--#elif defined(__OpenBSD__)
--  // Currently missing as of:
--  //  - OpenBSD 7.5 (April 2024)
--  return ENOSYS;
- #elif defined(__GLIBC__) || defined(__APPLE__) || defined(__FreeBSD__) || (defined(__ANDROID__) && __ANDROID_API__ >= 34) || defined(__musl__)
-   // Pre-standard posix_spawn_file_actions_addchdir_np version available in:
-   //  - Solaris 11.3 (October 2015)
 diff --git a/swift-corelibs-foundation/Sources/CoreFoundation/CFPlatform.c b/swift-corelibs-foundation/Sources/CoreFoundation/CFPlatform.c
 index 5769a3317e..916a7accbb 100644
 --- a/swift-corelibs-foundation/Sources/CoreFoundation/CFPlatform.c