Remove unnecessary precondition checks.

The public constructors prevent the object from being in this state.

Signed-off-by: Bradley Grainger <[email protected]>

src/HealthChecks.MySql/MySqlHealthCheck.cs

@@ -13,10 +13,6 @@ public class MySqlHealthCheck : IHealthCheck
     public MySqlHealthCheck(MySqlHealthCheckOptions options)
     {
         Guard.ThrowIfNull(options);
-        if (options.DataSource is null && options.ConnectionString is null)
-            throw new InvalidOperationException("One of options.DataSource or options.ConnectionString must be specified.");
-        if (options.DataSource is not null && options.ConnectionString is not null)
-            throw new InvalidOperationException("Only one of options.DataSource or options.ConnectionString must be specified.");
         _options = options;
     }