OK, try sorting the compiler options.

Also, comment out the addition of -Wno-deprecated-declarations, as the
CMake build doesn't use it.

If this succeeds in making the autotools and CMake builds compile C code
with the same -W and -f flags in the same order, that should eliminate
at least one reason why the CMake build produces compiler warnings that
the autotools build doesn't.

Change-Id: I0eaeae91b8e3c39c53f502daef86c2d103c8bdab
Reviewed-on: https://code.wireshark.org/review/3374
Reviewed-by: Guy Harris <guy@alum.mit.edu>