Don't store account.unreadCount in Settings.odb. Don’t rewrite AccountData.plist when feed.contentHash changes.

Frameworks/Account/Account.swift

@@ -78,7 +78,6 @@ public final class Account: DisplayNameProvider, UnreadCountProvider, Container,
         didSet {
             if unreadCount != oldValue {
                 postUnreadCountDidChangeNotification()
-				settingsTable.set(unreadCount, name: SettingsKey.unreadCount)
             }
         }
     }

Frameworks/Account/Feed.swift

@@ -116,7 +116,6 @@ public final class Feed: DisplayNameProvider, UnreadCountProvider, Hashable {
 		self.faviconURL = dictionary[Key.faviconURL] as? String
 		self.name = dictionary[Key.name] as? String
 		self.editedName = dictionary[Key.editedName] as? String
-//		self.contentHash = dictionary[Key.contentHash] as? String
 
 		if let conditionalGetInfoDictionary = dictionary[Key.conditionalGetInfo] as? [String: String] {
 			self.conditionalGetInfo = HTTPConditionalGetInfo(dictionary: conditionalGetInfoDictionary)
@@ -160,9 +159,6 @@ public final class Feed: DisplayNameProvider, UnreadCountProvider, Hashable {
 		if let authorsArray = authors?.diskArray() {
 			d[Key.authors] = authorsArray
 		}
-//		if let contentHash = contentHash {
-//			d[Key.contentHash] = contentHash
-//		}
 		if let conditionalGetInfo = conditionalGetInfo {
 			d[Key.conditionalGetInfo] = conditionalGetInfo.dictionary
 		}

Frameworks/Account/LocalAccount/LocalAccountRefresher.swift

@@ -80,7 +80,6 @@ extension LocalAccountRefresher: DownloadSessionDelegate {
 				}
 				
 				feed.contentHash = dataHash
-				feed.account?.dirty = true
 			}
 		}
 	}