refactor(tvix/castore/error): drop From<PoisonError<T>> for Error r/8115

We don't produce these erorrs anymore, no need to provide a conversion
to it.

Change-Id: I37933e436ad15c5d90b3ac270c4ef5742980513d
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11614
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Tested-by: BuildkiteCI
Autosubmit: flokli <flokli@flokli.de>

1 files changed, 0 insertions, 7 deletions

diff --git a/tvix/castore/src/errors.rs b/tvix/castore/src/errors.rs
index e807a19b9e..8343d0774a 100644
--- a/tvix/castore/src/errors.rs
+++ b/tvix/castore/src/errors.rs
@@ -1,4 +1,3 @@
-use std::sync::PoisonError;
 use thiserror::Error;
 use tokio::task::JoinError;
 use tonic::Status;
@@ -13,12 +12,6 @@ pub enum Error {
     StorageError(String),
 }
 
-impl<T> From<PoisonError<T>> for Error {
-    fn from(value: PoisonError<T>) -> Self {
-        Error::StorageError(value.to_string())
-    }
-}
-
 impl From<JoinError> for Error {
     fn from(value: JoinError) -> Self {
         Error::StorageError(value.to_string())