remove-minimal.xml: Add /platform/external/svox
In following commit @omnirom team switched to AOSP external_svox https://github.com/minimal-manifest-twrp/platform_manifest_twrp_omni/commit/b08a69e66f902cf36a7bae778153b908d5f4d7ed
But in `remove-minimal.xml` manifest specified @omnirom 's fork (android_external_svox), in this way there is a problem during use `repo sync`
> thenightdeveloper@thenightbox ~/android/RECOVERYs/minimal-twrp $ repo sync
fatal: remove-project element specifies non-existent project: android_external_svox
In https://github.com/TheNightDeveloper/platform_manifest_twrp_omni/commit/d7939813a4294b97639f432b365c31aa7789d099 I fixed syncing by deleting android_external_svox line in this manifest
After this change AOSP external_swox replaces @omnirom 's fork, but as said @gee-one external_swox uneeded for building TWRP (otherwise why is it removed from minimal build?🤔)
So, let's add unneeded /platform/external/svox in this manifest
Signed-off-by: thenightdeveloper <thenightdeveloper@gmail.com>