LLVM: disable remote URL in --version

.orchestra/config/components/clang_release.lib.yml

@@ -17,6 +17,7 @@ builds:
   default:
     configure: |
       extract.sh --into "$BUILD_DIR/source" "(@= source_url @)"
+      sed -i 's|GIT_FOUND|FALSE|g' "$BUILD_DIR/source/llvm/cmake/modules/VersionFromVCS.cmake"
       (@= configure_llvm(cmake_build_type="Release", cflags=" ", additional_cmake_options=cmake_opts(), source_dir="$BUILD_DIR/source") @)
     install: |
       cd "$BUILD_DIR"