Rust: Accept test change.

Author: geoffw0

rust/ql/test/query-tests/unusedentities/UnusedVariable.expected

@@ -10,7 +10,6 @@
 | main.rs:307:13:307:15 | num | Variable 'num' is not used. |
 | main.rs:342:25:342:25 | y | Variable 'y' is not used. |
 | main.rs:345:28:345:28 | a | Variable 'a' is not used. |
-| main.rs:348:9:348:9 | p | Variable 'p' is not used. |
 | main.rs:366:9:366:13 | right | Variable 'right' is not used. |
 | main.rs:372:9:372:14 | right2 | Variable 'right2' is not used. |
 | main.rs:383:13:383:13 | y | Variable 'y' is not used. |

rust/ql/test/query-tests/unusedentities/main.rs

@@ -345,7 +345,7 @@ fn if_lets_matches() {
         MyPoint { x: 3, y: a } => { // $ Alert[rust/unused-variable]
         }
         MyPoint { x: 4, .. } => {}
-        p => { // $ Alert[rust/unused-variable]
+        p => { // $ MISSING: Alert[rust/unused-variable]
         }
     }