The makefile in docs/api/ had a top level check for the 'sphinx-build' tool, but the check was getting triggered on 'make clean' when it is not needed and causing 'make rpm' and similar builds to fail. So this commit removes the check. Fixes #24163
The makefile in docs/api/ had a top level check for the 'sphinx-build' tool, but the check was getting triggered on 'make clean' when it is not needed and causing 'make rpm' and similar builds to fail. So this commit removes the check. Fixes #24163