removed pyloudnorm tests

...loudnorm/tests/data/1770-2_Comp_18LKFS_FrequencySweep.wav

.../pyloudnorm/tests/data/1770-2_Comp_23LKFS_10000Hz_2ch.wav

...s/pyloudnorm/tests/data/1770-2_Comp_23LKFS_1000Hz_2ch.wav

...ts/pyloudnorm/tests/data/1770-2_Comp_23LKFS_100Hz_2ch.wav

...s/pyloudnorm/tests/data/1770-2_Comp_23LKFS_2000Hz_2ch.wav

...pts/pyloudnorm/tests/data/1770-2_Comp_23LKFS_25Hz_2ch.wav

...ts/pyloudnorm/tests/data/1770-2_Comp_23LKFS_500Hz_2ch.wav

.../pyloudnorm/tests/data/1770-2_Comp_24LKFS_10000Hz_2ch.wav

...s/pyloudnorm/tests/data/1770-2_Comp_24LKFS_1000Hz_2ch.wav

...ts/pyloudnorm/tests/data/1770-2_Comp_24LKFS_100Hz_2ch.wav

...s/pyloudnorm/tests/data/1770-2_Comp_24LKFS_2000Hz_2ch.wav

...pts/pyloudnorm/tests/data/1770-2_Comp_24LKFS_25Hz_2ch.wav

...ts/pyloudnorm/tests/data/1770-2_Comp_24LKFS_500Hz_2ch.wav

...scripts/pyloudnorm/tests/data/1770-2_Comp_AbsGateTest.wav

...scripts/pyloudnorm/tests/data/1770-2_Comp_RelGateTest.wav

...udnorm/tests/data/1770-2_Conf_Mono_Voice+Music-23LKFS.wav

...udnorm/tests/data/1770-2_Conf_Mono_Voice+Music-24LKFS.wav

...yloudnorm/tests/data/1770-2_Conf_Stereo_VinL+R-23LKFS.wav

...yloudnorm/tests/data/1770-2_Conf_Stereo_VinL+R-24LKFS.wav

QUT_WSJ0_scripts/pyloudnorm/tests/data/piano.wav