CLEANUP: sample: rename sample_conv_var2smp() to *_sint

This one only handles integers, contrary to its sibling with the suffix
_str that only handles strings. Let's rename it and uninline it since it
may well be used from outside.

(cherry picked from commit d9be59952975e679f3305e32620ae3572a6a952c)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
2 files changed