C#: Update integration test expected output.

Author: michaelnebel

csharp/ql/integration-tests/posix/query-suite/csharp-code-quality.qls.expected

@@ -22,7 +22,6 @@ ql/csharp/ql/src/Concurrency/FutileSyncOnField.ql
 ql/csharp/ql/src/Concurrency/LockOrder.ql
 ql/csharp/ql/src/Concurrency/LockThis.ql
 ql/csharp/ql/src/Concurrency/LockedWait.ql
-ql/csharp/ql/src/Dead Code/DeadStoreOfLocal.ql
 ql/csharp/ql/src/Language Abuse/CastThisToTypeParameter.ql
 ql/csharp/ql/src/Language Abuse/CatchOfGenericException.ql
 ql/csharp/ql/src/Language Abuse/DubiousDowncastOfThis.ql