package/uclibc: fix ctype.h is*_l definitions
ctype locale-specific macro definitions are broken because they result
in dereference of pointer to structure of incomplete type.
Drop these macros since they are optional and let applications use
functions with the same names.
Backported from:
https://cgit.uclibc-ng.org/cgi/cgit/uclibc-ng.git/commit/?id=
d1a3ca7ca56630fddde7311a0474eed4a21335a7
Fixes:
http://autobuild.buildroot.net/results/
b7ba1210d5aa184b133f0171da621d2b0083ec39
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>