Remove unnecessary messages (#15109)

* Remove unnecessary messages

* ran `i18n-tasks normalize`

app/javascript/mastodon/locales/defaultMessages.json

@@ -541,19 +541,6 @@
     ],
     "path": "app/javascript/mastodon/components/status_content.json"
   },
-  {
-    "descriptors": [
-      {
-        "defaultMessage": "Loading…",
-        "id": "regeneration_indicator.label"
-      },
-      {
-        "defaultMessage": "Your home feed is being prepared!",
-        "id": "regeneration_indicator.sublabel"
-      }
-    ],
-    "path": "app/javascript/mastodon/components/status_list.json"
-  },
   {
     "descriptors": [
       {
@@ -753,143 +740,6 @@
     ],
     "path": "app/javascript/mastodon/features/account/components/account_note.json"
   },
-  {
-    "descriptors": [
-      {
-        "defaultMessage": "Mention @{name}",
-        "id": "account.mention"
-      },
-      {
-        "defaultMessage": "Direct message @{name}",
-        "id": "account.direct"
-      },
-      {
-        "defaultMessage": "Edit profile",
-        "id": "account.edit_profile"
-      },
-      {
-        "defaultMessage": "Unblock @{name}",
-        "id": "account.unblock"
-      },
-      {
-        "defaultMessage": "Unfollow",
-        "id": "account.unfollow"
-      },
-      {
-        "defaultMessage": "Unmute @{name}",
-        "id": "account.unmute"
-      },
-      {
-        "defaultMessage": "Block @{name}",
-        "id": "account.block"
-      },
-      {
-        "defaultMessage": "Mute @{name}",
-        "id": "account.mute"
-      },
-      {
-        "defaultMessage": "Follow",
-        "id": "account.follow"
-      },
-      {
-        "defaultMessage": "Report @{name}",
-        "id": "account.report"
-      },
-      {
-        "defaultMessage": "Share @{name}'s profile",
-        "id": "account.share"
-      },
-      {
-        "defaultMessage": "Media",
-        "id": "account.media"
-      },
-      {
-        "defaultMessage": "Hide everything from {domain}",
-        "id": "account.block_domain"
-      },
-      {
-        "defaultMessage": "Unhide {domain}",
-        "id": "account.unblock_domain"
-      },
-      {
-        "defaultMessage": "Hide boosts from @{name}",
-        "id": "account.hide_reblogs"
-      },
-      {
-        "defaultMessage": "Show boosts from @{name}",
-        "id": "account.show_reblogs"
-      },
-      {
-        "defaultMessage": "Pinned toots",
-        "id": "navigation_bar.pins"
-      },
-      {
-        "defaultMessage": "Preferences",
-        "id": "navigation_bar.preferences"
-      },
-      {
-        "defaultMessage": "Follow requests",
-        "id": "navigation_bar.follow_requests"
-      },
-      {
-        "defaultMessage": "Favourites",
-        "id": "navigation_bar.favourites"
-      },
-      {
-        "defaultMessage": "Lists",
-        "id": "navigation_bar.lists"
-      },
-      {
-        "defaultMessage": "Blocked users",
-        "id": "navigation_bar.blocks"
-      },
-      {
-        "defaultMessage": "Hidden domains",
-        "id": "navigation_bar.domain_blocks"
-      },
-      {
-        "defaultMessage": "Muted users",
-        "id": "navigation_bar.mutes"
-      },
-      {
-        "defaultMessage": "Feature on profile",
-        "id": "account.endorse"
-      },
-      {
-        "defaultMessage": "Don't feature on profile",
-        "id": "account.unendorse"
-      },
-      {
-        "defaultMessage": "Add or Remove from lists",
-        "id": "account.add_or_remove_from_list"
-      },
-      {
-        "defaultMessage": "Open moderation interface for @{name}",
-        "id": "status.admin_account"
-      },
-      {
-        "defaultMessage": "Information below may reflect the user's profile incompletely.",
-        "id": "account.disclaimer_full"
-      },
-      {
-        "defaultMessage": "View full profile",
-        "id": "account.view_full_profile"
-      },
-      {
-        "defaultMessage": "Toots",
-        "id": "account.posts"
-      },
-      {
-        "defaultMessage": "Follows",
-        "id": "account.follows"
-      },
-      {
-        "defaultMessage": "Followers",
-        "id": "account.followers"
-      }
-    ],
-    "path": "app/javascript/mastodon/features/account/components/action_bar.json"
-  },
   {
     "descriptors": [
       {
@@ -1460,15 +1310,6 @@
     ],
     "path": "app/javascript/mastodon/features/compose/components/upload_form.json"
   },
-  {
-    "descriptors": [
-      {
-        "defaultMessage": "Uploading...",
-        "id": "upload_progress.label"
-      }
-    ],
-    "path": "app/javascript/mastodon/features/compose/components/upload_progress.json"
-  },
   {
     "descriptors": [
       {
@@ -1595,23 +1436,6 @@
     ],
     "path": "app/javascript/mastodon/features/compose/index.json"
   },
-  {
-    "descriptors": [
-      {
-        "defaultMessage": "Filter out by regular expressions",
-        "id": "home.column_settings.filter_regex"
-      },
-      {
-        "defaultMessage": "Column settings",
-        "id": "home.settings"
-      },
-      {
-        "defaultMessage": "Advanced",
-        "id": "home.column_settings.advanced"
-      }
-    ],
-    "path": "app/javascript/mastodon/features/direct_timeline/components/column_settings.json"
-  },
   {
     "descriptors": [
       {
@@ -2702,24 +2526,6 @@
     ],
     "path": "app/javascript/mastodon/features/reblogs/index.json"
   },
-  {
-    "descriptors": [
-      {
-        "defaultMessage": "A look inside...",
-        "id": "standalone.public_title"
-      }
-    ],
-    "path": "app/javascript/mastodon/features/standalone/community_timeline/index.json"
-  },
-  {
-    "descriptors": [
-      {
-        "defaultMessage": "A look inside...",
-        "id": "standalone.public_title"
-      }
-    ],
-    "path": "app/javascript/mastodon/features/standalone/public_timeline/index.json"
-  },
   {
     "descriptors": [
       {