code: func (c *Config) RemoveSubsection(section string, subsection string) *Config {
  	for _, s := range c.Sections {
  		if s.IsName(section) {
  			result := Subsections{}
  			for _, ss := range s.Subsections {
  				if !ss.IsName(subsection) {
  					result = append(result, ss)
  				}
  			}
  			s.Subsections = result
  		}
  	}
  
  	return c
  }
docs: // RemoveSubsection remove	s a subsection from a config file.