m4-native 1.4.9: remove it

Its do_compile would be failed once our autoconf-naitve is built:
| /path/to/m4-native/1.4.9-r2/m4-1.4.9/missing: line 54: aclocal-1.10: command not found
| WARNING: `aclocal-1.10' is missing on your system.  You should only need it if
|          you modified `acinclude.m4' or `configure.ac'.  You might want
|          to install the `Automake' and `Perl' packages.  Grab them from

Also:
| /path/to/m4-native/1.4.9-r2/m4-1.4.9/missing: line 54: automake-1.10: command not found

We don't need keep a native GPLv2 recipe, so remove it.

Signed-off-by: Robert Yang <liezhi.yang@windriver.com>