Revert "Halo: merge derp"

This reverts commit 2ea8c5f221bc03c6111a937101f6246bacf5c1e4.
Revert "HALO: Option to pause the underlying app"

This reverts commit 218b312ff9bdf5ad35a80e77d621941d15a5abd6.
Revert "Halo: Add master switch to disable Halo (2/2)"

This reverts commit bf89e37d7c4d69c44858b846e5c5bdd8300a7790.
Revert "Halo (2/2) "

This reverts commit 3e043c9f6ef646094c6919ad030cb29388e42c60.