From 1ec227540582a00b8906f86c387174cf7d9e9397 Mon Sep 17 00:00:00 2001
From: Alireza Habibi <habibi.alireza@outlook.com>
Date: Tue, 11 Jan 2022 20:07:25 +0330
Subject: [PATCH] Revert

---
 src/Compilers/CSharp/Test/Syntax/Diagnostics/DiagnosticTest.cs | 1 -
 1 file changed, 1 deletion(-)

diff --git a/src/Compilers/CSharp/Test/Syntax/Diagnostics/DiagnosticTest.cs b/src/Compilers/CSharp/Test/Syntax/Diagnostics/DiagnosticTest.cs
index e24f495665bdd..ffc6e4ad098c9 100644
--- a/src/Compilers/CSharp/Test/Syntax/Diagnostics/DiagnosticTest.cs
+++ b/src/Compilers/CSharp/Test/Syntax/Diagnostics/DiagnosticTest.cs
@@ -349,7 +349,6 @@ public void WarningLevel_2()
                         case ErrorCode.WRN_InterpolatedStringHandlerArgumentAttributeIgnoredOnLambdaParameters:
                         case ErrorCode.WRN_CompileTimeCheckedOverflow:
                         case ErrorCode.WRN_MethGrpToNonDel:
-                        case ErrorCode.WRN_AnnotationOnSliceReturnType:
                             Assert.Equal(1, ErrorFacts.GetWarningLevel(errorCode));
                             break;
                         case ErrorCode.WRN_InvalidVersionFormat: