Remove redundant check for pyopenssl (#67901)

changelogs/fragments/67901-get_certificate-fix-cryptography.yml

@@ -0,0 +1,2 @@
+bugfixes:
+- get_certificate - Fix cryptography backend when pyopenssl is unavailable (https://github.com/ansible/ansible/issues/67900)

lib/ansible/modules/crypto/get_certificate.py

@@ -258,9 +258,6 @@ def main():
         changed=False,
     )
 
-    if not PYOPENSSL_FOUND:
-        module.fail_json(msg=missing_required_lib('pyOpenSSL >= 0.15'), exception=PYOPENSSL_IMP_ERR)
-
     if timeout:
         setdefaulttimeout(timeout)