Remove unused 'standard_d8_media_types' module...

web/modules/custom/standard_d8_media_types/config/install/media.type.audio.yml

-langcode: en
-status: true
-dependencies: {  }
-id: audio
-label: Audio
-description: 'A locally hosted audio file.'
-source: audio_file
-queue_thumbnail_downloads: false
-new_revision: true
-source_configuration:
-  source_field: field_media_audio_file
-field_map: {  }

web/modules/custom/standard_d8_media_types/config/install/media.type.embed_video.yml

-langcode: en
-status: true
-dependencies:
-  module:
-    - video_embed_media
-id: embed_video
-label: 'Embed Video'
-description: 'Copy URL for video from YouTube or Vimeo'
-source: video_embed_field
-queue_thumbnail_downloads: false
-new_revision: false
-source_configuration:
-  source_field: field_media_video_embed_field
-field_map: {  }

web/modules/custom/standard_d8_media_types/config/install/media.type.file.yml

-langcode: en
-status: true
-dependencies: {  }
-id: file
-label: File
-description: 'Use local files for reusable media.'
-source: file
-queue_thumbnail_downloads: false
-new_revision: true
-source_configuration:
-  source_field: field_media_file
-field_map: {  }

web/modules/custom/standard_d8_media_types/config/install/media.type.image.yml

-langcode: en
-status: true
-dependencies: {  }
-id: image
-label: Image
-description: 'Use local images for reusable media.'
-source: image
-queue_thumbnail_downloads: false
-new_revision: true
-source_configuration:
-  source_field: field_media_image
-field_map: {  }

web/modules/custom/standard_d8_media_types/config/install/media.type.twitter.yml

-langcode: en
-status: true
-dependencies:
-  module:
-    - media_entity_twitter
-id: twitter
-label: Twitter
-description: 'Copy Twitter link to Tweet'
-source: twitter
-queue_thumbnail_downloads: false
-new_revision: false
-source_configuration:
-  source_field: field_media_twitter
-  use_twitter_api: false
-  generate_thumbnails: false
-  consumer_key: ''
-  consumer_secret: ''
-  oauth_access_token: ''
-  oauth_access_token_secret: ''
-field_map: {  }

web/modules/custom/standard_d8_media_types/config/install/media.type.video.yml

-langcode: en
-status: true
-dependencies: {  }
-id: video
-label: Video
-description: 'A locally hosted video file.'
-source: video_file
-queue_thumbnail_downloads: false
-new_revision: true
-source_configuration:
-  source_field: field_media_video_file
-field_map: {  }

web/modules/custom/standard_d8_media_types/standard_d8_media_types.features.yml

-required: true

web/modules/custom/standard_d8_media_types/standard_d8_media_types.info.yml

-name: 'Standard D8 Media Types'
-description: 'Audio, Embed Video, File, Image, Twitter, Video'
-type: module
-core: 8.x
-dependencies:
-  - media
-  - media_entity_twitter
-  - video_embed_media
-version: 8.x-1.0-beta1