Cargo.toml: Remove 'unidiff' dependency

Ended up not using this. Instead used 'git2' to generate the diff.

1 files changed, 0 insertions, 1 deletions

diff --git a/Cargo.toml b/Cargo.toml
index aa827e3..b494e8e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,5 +11,4 @@ serde = { version = "1.0.114", features = ["derive"] }
 serde_json = "1.0.56"
 tempfile = "3.1.0"
 thiserror = "1.0.20"
-unidiff = "0.3.3"
 url = "2.1.1"