chore(tvix/castore): remove dependency on anyhow

We don't use this here, except in a test, where we don't really use
it either.

Change-Id: Ia6c45fccf663fe328942b1e1a2cd1c3a1b7f9ae5
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9376
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Tested-by: BuildkiteCI

tvix/Cargo.lock

@@ -2734,7 +2734,6 @@ checksum = "3528ecfd12c466c6f163363caf2d02a71161dd5e1cc6ae7b34207ea2d42d81ed"
 name = "tvix-castore"
 version = "0.1.0"
 dependencies = [
- "anyhow",
  "async-stream",
  "blake3",
  "bytes",

tvix/Cargo.nix

@@ -8136,10 +8136,6 @@ rec {
           then lib.cleanSourceWith { filter = sourceFilter; src = ./castore; }
           else ./castore;
         dependencies = [
-          {
-            name = "anyhow";
-            packageId = "anyhow";
-          }
           {
             name = "async-stream";
             packageId = "async-stream";

tvix/castore/Cargo.toml

@@ -4,7 +4,6 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
-anyhow = "1.0.68"
 async-stream = "0.3.5"
 blake3 = { version = "1.3.1", features = ["rayon", "std"] }
 bytes = "1.4.0"

tvix/castore/src/directoryservice/grpc.rs

@@ -355,7 +355,7 @@ mod tests {
     };
 
     #[test]
-    fn test() -> anyhow::Result<()> {
+    fn test() {
         let tmpdir = TempDir::new().unwrap();
         let socket_path = tmpdir.path().join("socket");
 
@@ -535,7 +535,5 @@ mod tests {
                     .expect_err("must fail");
             }
         });
-
-        Ok(())
     }
 }