can not use import to delete missings source objects

[lyb124553153]

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Expected behavior

According to this document [ documents with missing source object ids will be

deleted from index:](https://github.com/toptal/chewy/blob/master/lib/chewy/index/adapter/orm.rb#L55)

 MessagesIndex.import [1] # inactive users will be deleted from index

Actual behavior

irb(main):001:0> MessagesIndex.import [1]
Traceback (most recent call last):
        1: from (irb):1
ArgumentError (wrong number of arguments (given 1, expected 0))

Steps to reproduce the problem

class MessagesIndex  < Chewy::Index
end 
MessagesIndex.import [1]

Version Information

Share here essential version information such as:

• Chewy version 7.5.1
• Elasticsearch version
• Ruby version 2.6.3
• Rails version 6.0