doctor: remove stale OS version check

Closes #19959.
Clarify API token env var
Elixir 0.9.0

Closes #20015.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
CImg 1.5.5

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
diffuse 0.4.7

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
fatsort 1.0.1.314

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
geoserver 2.3.2

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
gputils 1.2.0

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
gsoap 2.8.15

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
ipmiutil 2.9.1

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
ircd-hybrid 8.0.9

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
libical 1.0

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
log4c 1.2.3

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
log4cplus 1.1.1

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
msmtp 1.4.31

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
pstoedit 3.62

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
Saxon 9.5.0.2

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
sqsh 2.2.0

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
uriparser 0.7.8

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
x3270 3.3.12ga13

Closes #20014.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>