How to Hide Mementor Text to Speech (TTS) Accessibility Admin Menus

function plt_hide_text_to_speech_tts_menus() {
	//Hide "Text to Speech".
	remove_menu_page('text-to-speech-tts-settings');
	//Hide "Text to Speech → Settings".
	remove_submenu_page('text-to-speech-tts-settings', 'text-to-speech-tts-settings');
	//Hide "Text to Speech → Content".
	remove_submenu_page('text-to-speech-tts-settings', 'text-to-speech-tts-content');
	//Hide "Text to Speech → Voices".
	remove_submenu_page('text-to-speech-tts-settings', 'text-to-speech-tts-voices');
	//Hide "Text to Speech → Player".
	remove_submenu_page('text-to-speech-tts-settings', 'text-to-speech-tts-player');
	//Hide "Text to Speech → Shortcode Generator".
	remove_submenu_page('text-to-speech-tts-settings', 'text-to-speech-tts-generator');
	//Hide "Text to Speech → My Stats & Voices".
	remove_submenu_page('text-to-speech-tts-settings', 'text-to-speech-tts-my-stats-voices');
	//Hide "Text to Speech → Statistics".
	remove_submenu_page('text-to-speech-tts-settings', 'text-to-speech-tts-statistics');
	//Hide "Text to Speech → Advanced".
	remove_submenu_page('text-to-speech-tts-settings', 'text-to-speech-tts-advanced');
	//Hide "Text to Speech → Affiliate Program".
	remove_submenu_page('text-to-speech-tts-settings', 'text-to-speech-tts-affiliate');
	//Hide "Text to Speech → License".
	remove_submenu_page('text-to-speech-tts-settings', 'text-to-speech-tts-license');
	//Hide "Text to Speech → Support Forum".
	remove_submenu_page('text-to-speech-tts-settings', 'https://wordpress.org/support/plugin/text-to-speech-tts/');
}

add_action('admin_menu', 'plt_hide_text_to_speech_tts_menus', 11);
Where do I put this code?