Add migration to drop `comment_smiles` table

db/migrate/20220706174816_drop_comment_smiles_table.rb

@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+class DropCommentSmilesTable < ActiveRecord::Migration[6.1]
+  def up
+    drop_table :comment_smiles
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2022_07_06_174120) do
+ActiveRecord::Schema.define(version: 2022_07_06_174816) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -62,16 +62,6 @@ ActiveRecord::Schema.define(version: 2022_07_06_174120) do
     t.index ["user_id", "created_at"], name: "index_appendables_on_user_id_and_created_at"
   end
 
-  create_table "comment_smiles", id: :bigint, default: -> { "gen_timestamp_id('comment_smiles'::text)" }, force: :cascade do |t|
-    t.bigint "user_id"
-    t.bigint "comment_id"
-    t.datetime "created_at", null: false
-    t.datetime "updated_at", null: false
-    t.index ["comment_id"], name: "index_comment_smiles_on_comment_id"
-    t.index ["user_id", "comment_id"], name: "index_comment_smiles_on_user_id_and_comment_id", unique: true
-    t.index ["user_id"], name: "index_comment_smiles_on_user_id"
-  end
-
   create_table "comments", id: :bigint, default: -> { "gen_timestamp_id('comments'::text)" }, force: :cascade do |t|
     t.string "content"
     t.bigint "answer_id"