Borg can activate modes not supposed to be activated during init-build

## Description While doing `make init-build` loads literally init.el which can activate functions such as `org-clock-persistence-insinuate` if the user has them in their configuration which shouldn't be called during batch compilation. There is no real way to prevent that but it would be useful to be able to apply workaround such as for example in the case of org-clock to be set `org-clock-persist-fil` to `nil`. ## Steps to reproduce the issue 1. `make init-build V=1` 2. borg calls `borg-batch-rebuild-init` which loads init.el literally. 3. Bug is triggered