#71 Remove deprecated tests: TemplatingIntegrationTest.

[oskarjerzyk]

Description

TemplatingIntegrationTest removed because in knotx-stack we have proper tests validating templating and this one is now deprecated and useless

Motivation and Context

Screenshots (if appropriate)

Upgrade notes (if appropriate)

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

• [ ] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.

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