Remove tests for languages en-old, uz.
Remove tests for languages en-old, uz.

Tests for those languages are removed because in cucumber/gherkin
definition they have repeated keywords:
- en-old has words "Tha", "Ða", "Þa" as keyword for When and Then,
- uz has word "Агар" as keyword for Given and When.

unkind/Gherkin,higrow/Gherkin,dav-m85/Gherkin,stof/Gherkin,Behat/Gherkin