Revert support from loading Home timeline from database

Unfortunately, the database query could turn out very inefficient and I did not
manage to find a way to improve that. Furthermore, there were still behavior
inconsistencies between fetching the timeline from Redis and fetching it from
Postgres.

app/models/home_feed.rb

@@ -9,52 +9,4 @@ class HomeFeed < Feed
   def regenerating?
     redis.exists?("account:#{@account.id}:regeneration")
   end
-
-  def get(limit, max_id = nil, since_id = nil, min_id = nil)
-    limit    = limit.to_i
-    max_id   = max_id.to_i if max_id.present?
-    since_id = since_id.to_i if since_id.present?
-    min_id   = min_id.to_i if min_id.present?
-
-    if min_id.present?
-      redis_min_id = fetch_min_redis_id
-      return from_redis(limit, max_id, since_id, min_id) if redis_min_id && min_id >= redis_min_id
-
-      statuses = from_database(limit, redis_min_id, since_id, min_id)
-      return statuses if statuses.size >= limit
-
-      remaining_limit = limit - statuses.size
-      min_id = statuses.first.id unless statuses.empty?
-      from_redis(remaining_limit, max_id, since_id, min_id) + statuses
-    else
-      statuses = from_redis(limit, max_id, since_id, min_id)
-      return statuses if statuses.size >= limit
-
-      if since_id.present?
-        redis_min_id = fetch_min_redis_id
-        return statuses if redis_min_id.present? && since_id >= redis_min_id
-      end
-
-      remaining_limit = limit - statuses.size
-      max_id = statuses.last.id unless statuses.empty?
-      statuses + from_database(remaining_limit, max_id, since_id, min_id)
-    end
-  end
-
-  protected
-
-  def from_database(limit, max_id, since_id, min_id)
-    scope = Status.where(account: @account).or(Status.where(account: @account.following))
-    scope = scope.where(visibility: %i(public unlisted private))
-    scope
-      .to_a_paginated_by_id(limit, min_id: min_id, max_id: max_id, since_id: since_id)
-      .reject { |status| FeedManager.instance.filter?(:home, status, @account) }
-      .sort_by { |status| -status.id }
-  end
-
-  private
-
-  def fetch_min_redis_id
-    redis.zrangebyscore(key, '(0', '(+inf', limit: [0, 1], with_scores: true).first&.first&.to_i
-  end
 end