Fix migration

Signed-off-by: Arthur DANJOU <arthurdanjou@outlook.fr>

database/migrations/1605956711010_posts.ts

@@ -1,18 +0,0 @@
-import BaseSchema from '@ioc:Adonis/Lucid/Schema'
-
-export default class Posts extends BaseSchema {
-  protected tableName = 'posts'
-
-  public async up () {
-    this.schema.createTable(this.tableName, (table) => {
-      table.increments('id').primary()
-      table.string('slug').notNullable()
-      table.integer('likes').notNullable()
-      table.timestamps(true, true)
-    })
-  }
-
-  public async down () {
-    this.schema.dropTable(this.tableName)
-  }
-}