build/llvmPackages: don't need to patch omp

After wuxi's merge request, this won't be necessary anymore.

assets/omp.diff

@@ -1,13 +0,0 @@
-diff --git a/openmp/runtime/src/CMakeLists.txt b/openmp/runtime/src/CMakeLists.txt
-index bdb867e352f7..a0b6e50e0ce8 100644
---- a/openmp/runtime/src/CMakeLists.txt
-+++ b/openmp/runtime/src/CMakeLists.txt
-@@ -148,7 +148,7 @@ libomp_get_libflags(LIBOMP_CONFIGURED_LIBFLAGS)
- if(OPENMP_STANDALONE_BUILD OR (NOT OPENMP_ENABLE_LIBOMP_PROFILING))
-   add_library(omp ${LIBOMP_LIBRARY_KIND} ${LIBOMP_SOURCE_FILES})
-   # Linking command will include libraries in LIBOMP_CONFIGURED_LIBFLAGS
--  target_link_libraries(omp ${LIBOMP_CONFIGURED_LIBFLAGS} ${CMAKE_DL_LIBS})
-+  target_link_libraries(omp ${LIBOMP_CONFIGURED_LIBFLAGS} ${CMAKE_DL_LIBS} "-Wl,--version-script=${CMAKE_CURRENT_SOURCE_DIR}/exports_so.txt")
- else()
-   add_llvm_library(omp ${LIBOMP_LIBRARY_KIND} ${LIBOMP_SOURCE_FILES} PARTIAL_SOURCES_INTENDED
-     LINK_LIBS ${LIBOMP_CONFIGURED_LIBFLAGS} ${CMAKE_DL_LIBS}

src/build/llvmPackages.ts

@@ -110,17 +110,6 @@ export function llvmPackages({
         return {
             name: "llvm",
             platform,
-            patchPhase: async () => {
-                if (platform.buildPlatform.arch !== 'x86_64'
-                    && platform.buildPlatform.arch !== 'aarch64') {
-                    // Apply llvm omp patch
-                    await promisifySpawn(spawn("git",
-                        [
-                            "apply",
-                            path.resolve(projectRoot, "assets", "omp.diff"),
-                        ], spawnOptions));
-                }
-            },
             configurePhase: async () => {
                 // Configure
                 await promisifySpawn(spawn(cmake, command({