feat: remove deprecated code

Signed-off-by: Miles Zhang <[email protected]>

app/jobs/revert_block_job.rb

@@ -31,7 +31,6 @@ def perform(local_tip_block = nil)
       benchmark :recalculate_udt_accounts, udt_type_hashes, local_tip_block
       benchmark :update_address_balance_and_ckb_transactions_count, local_tip_block
       benchmark :revert_block_rewards, local_tip_block
-      benchmark :revert_referring_cells, local_tip_block
       ForkedEvent.create!(block_number: local_tip_block.number, epoch_number: local_tip_block.epoch,
                           block_timestamp: local_tip_block.timestamp)
       ApplicationRecord.benchmark "BlockStatisticGenerator" do
@@ -208,9 +207,4 @@ def decrease_records_count(local_tip_block)
     normal_transactions = local_tip_block.ckb_transactions.normal
     ckb_transaction_counter.decrement!(:count, normal_transactions.count) if normal_transactions.present?
   end
-
-  def revert_referring_cells(local_tip_block)
-    tx_ids = local_tip_block.ckb_transaction_ids
-    ReferringCell.where(ckb_transaction_id: tx_ids).delete_all
-  end
 end

app/models/cell_output.rb

@@ -42,8 +42,6 @@ class CellOutput < ApplicationRecord
   # but one cell may be included by many pending transactions,
   # the cell_inputs won't always be the same as `consumed_by`.`cell_inputs`
   has_many :cell_inputs, foreign_key: :previous_cell_output_id
-  # belongs_to :deployed_cell, optional: true
-  # has_many :referring_cells
   # the block_id is actually the same as ckb_transaction.block_id, must be on chain
   # but one cell may be included by pending transactions, so block_id may be null
   belongs_to :block, optional: true