ALSA: seq_oss: Drop superfluous error/debug messages after malloc failures

The kernel memory allocators already report the errors when the
requested allocation fails, thus we don't need to warn it again in
each caller side.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --cc sound/core/seq/oss/seq_oss_init.c
Simple merge

diff --cc sound/core/seq/oss/seq_oss_midi.c
Simple merge

diff --cc sound/core/seq/oss/seq_oss_readq.c
Simple merge

diff --cc sound/core/seq/oss/seq_oss_synth.c
Simple merge