[App Size reduction] Remove dark variation duplicate of blaze intro asset#15763

iamgabrielma merged 1 commit intotrunkwoocommerce/woocommerce-ios:trunkfrom

task/part-of-WOOMOB-534-update-blaze-introwoocommerce/woocommerce-ios:task/part-of-WOOMOB-534-update-blaze-introCopy head branch name to clipboard