Rust: Fix after merge.

Author: geoffw0

rust/ql/test/query-tests/security/CWE-089/SqlInjection.expected

@@ -172,7 +172,6 @@ edges
 | sqlx.rs:47:22:47:37 | ...::args(...) [element] | sqlx.rs:47:22:47:44 | ... .nth(...) [Some] | provenance | MaD:25 |
 | sqlx.rs:47:22:47:44 | ... .nth(...) [Some] | sqlx.rs:47:22:47:77 | ... .unwrap_or(...) | provenance | MaD:30 |
 | sqlx.rs:47:22:47:77 | ... .unwrap_or(...) | sqlx.rs:47:9:47:18 | arg_string | provenance |  |
-| sqlx.rs:48:9:48:21 | remote_string | sqlx.rs:49:25:49:52 | remote_string.parse() [Ok] | provenance | MaD:34 |
 | sqlx.rs:48:9:48:21 | remote_string | sqlx.rs:54:27:54:39 | remote_string | provenance |  |
 | sqlx.rs:48:9:48:21 | remote_string | sqlx.rs:55:84:55:96 | remote_string | provenance |  |
 | sqlx.rs:48:9:48:21 | remote_string | sqlx.rs:59:17:59:72 | MacroExpr | provenance |  |