Revert a bit more

Author: DavisVaughan

crates/oak_package/Cargo.toml

@@ -2,14 +2,17 @@
 name = "oak_package"
 version = "0.1.0"
 description = """
-R package metadata: DESCRIPTION, NAMESPACE, and INDEX readers.
+R package metadata: DESCRIPTION, NAMESPACE, INDEX readers and Library cache.
 """
 
 authors.workspace = true
 edition.workspace = true
 license.workspace = true
 rust-version.workspace = true
 
+[features]
+testing = ["dep:tempfile"]
+
 [lints]
 workspace = true
 
@@ -28,7 +31,4 @@ workspace = true
 optional = true
 
 [dev-dependencies]
-tempfile.workspace = true
-
-[features]
-testing = ["dep:tempfile"]
+tempfile.workspace = true