As MDL-73016 set the minimum supported PHP version for Moodle 4.4 and up
to PHP 8.1 we can now safely remove this check. As the lang string
`errorphp7required` is particular to mlbackend php plugin we are going
for direct deletion instead of regular deprecation.
Signed-off-by: Daniel Ziegenberg <daniel@ziegenberg.at>
Daniel Ziegenberg
bcce1851f1