Remove -ansi compiler flag to allow for C99
Remove -ansi compiler flag to allow for C99

Lua 5.3 requires either C99 or a Windows compiler to have long
long integers, or permission from the user to use 32-bit integers
for its integer types.  I don't mind requiring users of lua-term
to have a C99 compiler, but users who want 32-bit integers can
override CFLAGS in their environment if they insist.

hoelzro/lua-term