Fix windows linter issue

Author: Jamesbarford

database/src/tests/mod.rs

@@ -50,10 +50,6 @@ impl TestContext {
             // cfg-gated to keep non-unix builds happy.
             #[cfg(unix)]
             Host::Unix(_) => panic!("Unix sockets in Postgres connection string are not supported"),
-
-            // On non-unix targets the enum has no other variants.
-            #[cfg(not(unix))]
-            _ => unreachable!("non-TCP hosts cannot appear on this platform"),
         };
 
         // We need to connect to the database against, because Postgres doesn't allow
@@ -143,6 +139,7 @@ where
 
 /// Runs a test against an actual database.
 /// Checks both Postgres and SQLite.
+#[allow(dead_code)]
 pub async fn run_db_test<F, Fut>(f: F)
 where
     F: Fn(TestContext) -> Fut + Clone,