The Makefile already uses the proper autoreconf fixup but leaves a manual
autoconf invocation in place.
The bad autoconf call leads to the following build error in the SDK:
configure.ac:3: installing `./config.guess'
configure.ac:3: installing `./config.sub'
configure.ac:20: installing `./install-sh'
configure.ac:20: installing `./missing'
src/Makefile.am: installing `./depcomp'
autoreconf: Leaving directory `.'
aclocal...
autoheader...
libtoolize... libtoolize nor glibtoolize not found
make[2]: *** [.../.configured_] Error 1
Remove the entire Build/Configure override to let libtorrent build correctly.
Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>