laravel migration delete column

// To drop a column, use the dropColumn method on the schema builder.
// Before dropping columns from a SQLite database, you will need to add
// the doctrine/dbal dependency to your composer.json file and run the
// composer update command in your terminal to install the library:

Schema::table('users', function (Blueprint $table) {
    $table->dropColumn('votes');
});

 Class RemoveCommentViewCount extends Migration
  {
      public function up()
      {
          Schema::table('articles', function($table) {
             $table->dropColumn('comment_count');
             $table->dropColumn('view_count');
          });
      }

      public function down()
      {
          Schema::table('articles', function($table) {
             $table->integer('comment_count');
             $table->integer('view_count');
          });
      }
  }

Class RemoveCommentViewCount extends Migration
  {
      public function up()
      {
          Schema::table('table', function($table) {
             $table->dropColumn('coulmn_name');
          });
      }

      public function down()
      {
          Schema::table('table', function($table) {
             $table->integer('column_name');
          });
      }
  }