Remove unnecessary call to GetSyntaxRootAsync

Author: sharwell

StyleCop.Analyzers/StyleCop.Analyzers.CodeFixes/SpacingRules/SA1028CodeFixProvider.cs

@@ -35,9 +35,8 @@ public sealed override FixAllProvider GetFixAllProvider()
         }
 
         /// <inheritdoc/>
-        public override async Task RegisterCodeFixesAsync(CodeFixContext context)
+        public override Task RegisterCodeFixesAsync(CodeFixContext context)
         {
-            var root = await context.Document.GetSyntaxRootAsync(context.CancellationToken).ConfigureAwait(false);
             foreach (var diagnostic in context.Diagnostics)
             {
                 context.RegisterCodeFix(
@@ -47,6 +46,8 @@ public override async Task RegisterCodeFixesAsync(CodeFixContext context)
                         nameof(SA1028CodeFixProvider)),
                     diagnostic);
             }
+
+            return SpecializedTasks.CompletedTask;
         }
 
         /// <summary>