CSHARP-791: Ignore any exceptions thrown by KillCursor.

Author: rstam

MongoDB.Driver/Operations/QueryOperation.cs

@@ -115,20 +115,18 @@ public IEnumerator<TDocument> Execute(IConnectionProvider connectionProvider)
                     }
                 }
             }
-            catch
-            {
-                if (reply != null && reply.CursorId != 0)
-                {
-                    try { KillCursor(connectionProvider, reply.CursorId); }
-                    catch { } // ignore exceptions and rethrow the original exception
-                }
-                throw;
-            }
             finally
             {
                 if (reply != null && reply.CursorId != 0)
                 {
-                    KillCursor(connectionProvider, reply.CursorId);
+                    try
+                    {
+                        KillCursor(connectionProvider, reply.CursorId);
+                    }
+                    catch
+                    {
+                        // don't throw any exceptions from the finally block
+                    }
                 }
             }
         }