modules: remove bandlimited "audio resampler"

cf. 9c740613

Furthermore, it is probed as an "audio resampler" but won't load if fmt_in.audio.i_rate == fmt_out.audio.i_rate causing this module to be never loaded.

"audio resampler" change the rate live. "audio converter" convert the fixed samplerate.

This module should have been an "audio converter".