Remove callspec related block of code
Remove callspec related block of code

It seems this is no longer required now that we don't support
yield tests anymore. The param attribute was added here:

https://github.com/pytest-dev/pytest/blob/91b6f2bda8668e0f74190ed223a9eec01d09a0a7/_pytest/python.py#L888-L891

pytest-dev/pytest,The-Compiler/pytest,nicoddemus/pytest,Akasurde/pytest,tomviner/pytest,markshao/pytest,nicoddemus/pytest,alfredodeza/pytest,tomviner/pytest,The-Compiler/pytest,RonnyPfannschmidt/pytest