Remove condition in validation check for CSV files

[SmetDenis]

The commit removes a condition that checked for schema files without corresponding CSV files in the ValidateCsv script. This decision could mean that having schema files without CSVs is now acceptable in the business logic.

[coveralls]

Pull Request Test Coverage Report for Build 8590872667

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.003%) to 96.742%

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Totals
Change from base Build 8589188718:	-0.003%
Covered Lines:	3148
Relevant Lines:	3254

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💛 - Coveralls