The 'function' variable in 'APICodeExamplesPreprocessor.generate_text'
matches the pattern of API_ENDPOINT_NAME = r"/[a-z_\-/-{}]+:[a-z]+"
It is always of the form 'endpoint_path:endpoint_method'.
There's no possibility of multiple ':'.
This commit removes the unused code block in `render_curl_example`,
which was trying to get 'auth_email' & 'auth_api_key' from 'function'.
(cherry picked from commit 9785cb4a09)