code: @Override
      public DeleteSecurityGroupResult deleteSecurityGroup(DeleteSecurityGroupRequest request) {
          request = beforeClientExecution(request);
          return executeDeleteSecurityGroup(request);
      }
docs: <p>
  Deletes a security group.
  </p>
  <p>
  If you attempt to delete a security group that is associated with an instance, or is referenced by another
  security group, the operation fails with <code>InvalidGroup.InUse</code> in EC2-Classic or
  <code>DependencyViolation</code> in EC2-VPC.
  </p>
  
  @param deleteSecurityGroupRequest
  @return Result of the DeleteSecurityGroup operation returned by the service.
  @sample AmazonEC2.DeleteSecurityGroup
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/ec2-2016-11-15/DeleteSecurityGroup" target="_top">AWS API
  Documentation</a>