Disable runfile tree building when --remote_download_minimal

Since we don't download any outputs there's no point in building the runfile tree. After this change there should no longer be dangling symlinks in the output base. It can also improve performance if symlink tree creation is slow.

Closes #9315.

PiperOrigin-RevId: 266964992

src/main/java/com/google/devtools/build/lib/remote/options/RemoteOptions.java

@@ -262,6 +262,7 @@ public RemoteOutputsStrategyConverter() {
       oldName = "experimental_remote_download_minimal",
       defaultValue = "null",
       expansion = {
+        "--nobuild_runfile_links",
         "--experimental_inmemory_jdeps_files",
         "--experimental_inmemory_dotd_files",
         "--experimental_remote_download_outputs=minimal"