feat(expressions): remove the unfinished packs feature (#2250)

fluxer_admin/openapi-admin.json

@@ -8959,7 +8959,6 @@
 					"INVALID_FORM_BODY",
 					"INVALID_GRANT",
 					"INVALID_HANDOFF_CODE",
-					"INVALID_PACK_TYPE",
 					"INVALID_PERMISSIONS_INTEGER",
 					"INVALID_PERMISSIONS_NEGATIVE",
 					"INVALID_PHONE_NUMBER",
@@ -9002,8 +9001,6 @@
 					"MAX_GUILDS",
 					"NEW_ACCOUNT_GUILD_JOIN_RATE_LIMITED",
 					"MAX_INVITES",
-					"MAX_PACK_EXPRESSIONS",
-					"MAX_PACKS",
 					"MAX_PINS_PER_CHANNEL",
 					"MESSAGE_TOTAL_ATTACHMENT_SIZE_TOO_LARGE",
 					"MAX_REACTIONS",
@@ -9038,7 +9035,6 @@
 					"NOT_OWNER_OF_ADMIN_API_KEY",
 					"NSFW_CONTENT_AGE_RESTRICTED",
 					"NSFW_EMOJI_STICKER_BLOCKED",
-					"PACK_ACCESS_DENIED",
 					"PASSKEY_AUTHENTICATION_FAILED",
 					"PASSKEYS_DISABLED",
 					"PHONE_ADD_NOT_ELIGIBLE",
@@ -9117,7 +9113,6 @@
 					"UNKNOWN_INVITE",
 					"UNKNOWN_MEMBER",
 					"UNKNOWN_MESSAGE",
-					"UNKNOWN_PACK",
 					"UNKNOWN_REPORT",
 					"UNKNOWN_ROLE",
 					"UNKNOWN_STICKER",