Move fractional spin_lock to experimental since we do not use it.

a169cf57 · Robbert Krebbers · d485c7d7 · a169cf57 · a169cf57
Commit a169cf57 authored Jul 06, 2019 by Robbert Krebbers
--- a/_CoqProject
+++ b/_CoqProject
@@ -3,7 +3,6 @@
 theories/utils/auth_excl.v
 theories/utils/list.v
 theories/utils/compare.v
-theories/utils/spin_lock.v
 theories/utils/contribution.v
 theories/channel/channel.v
 theories/channel/proto_model.v

--- a/theories/utils/spin_lock.v
+++ b/theories/utils/spin_lock.v