mysql: remove stray comment
In commit 9863553fe8fa16a4d19f652b409a44bb58ef5567 ("packages: all
salute the passing of avr32"), the dependency on !BR2_avr32 was
removed, but not the comment above it. So now, the comment seems to
apply to a line selecting some library, which doesn't make sense. This
commit gets rid of the unneeded and confusing comment.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Thomas Petazzoni