For alsa-lib the items I can overtly disable are:

resmgr         support resmgr (optional)
aload           reading /dev/aload*
mixer           mixer component
pcm            PCM component
rawmidi      raw MIDI component
hwdep        hwdep component
seq             sequencer component
instr            instrument component

For alsa-utilities, I find these directories that appear to contain utility programs:

drwxr-xr-x    3 root     root         4096 Sep 11 17:30 alsaconf
drwxr-xr-x    3 root     root         4096 Sep 11 17:30 alsactl
drwxr-xr-x    3 root     root         4096 Sep 11 17:30 alsamixer
drwxr-xr-x    3 root     root         4096 Sep 11 17:30 amidi
drwxr-xr-x    3 root     root         4096 Sep 11 17:31 amixer
drwxr-xr-x    3 root     root         4096 Sep 11 17:31 aplay
drwxr-xr-x    3 root     root         4096 Sep 11 17:31 iecset
drwxr-xr-x    2 root     root         4096 Sep 11 17:30 include
drwxr-xr-x    2 root     root         4096 Sep 11 17:30 m4          *** not sure what this is????
drwxr-xr-x    2 root     root         4096 Sep 11 17:30 po           *** not sure what this is????
drwxr-xr-x    6 root     root         4096 Sep 11 17:30 seq
drwxr-xr-x    4 root     root         4096 Sep 11 17:31 speaker-test

For alsa-sriver, the following modules were generated:

-rw-r--r--    1 root     root       176864 Sep 22 09:47 snd-ainstr-fm.o
-rw-r--r--    1 root     root       280414 Sep 22 09:47 snd-cmipci.o
-rw-r--r--    1 root     root       190018 Sep 22 09:47 snd-hwdep.o
-rw-r--r--    1 root     root       180495 Sep 22 09:47 snd-mpu401-uart.o
-rw-r--r--    1 root     root       453191 Sep 22 09:47 snd.o
-rw-r--r--    1 root     root       209809 Sep 22 09:47 snd-opl3-lib.o
-rw-r--r--    1 root     root       214174 Sep 22 09:47 snd-opl3-synth.o
-rw-r--r--    1 root     root       249866 Sep 22 09:47 snd-page-alloc.o
-rw-r--r--    1 root     root       441313 Sep 22 09:47 snd-pcm.o
-rw-r--r--    1 root     root       231737 Sep 22 09:47 snd-rawmidi.o
-rw-r--r--    1 root     root       195855 Sep 22 09:47 snd-seq-device.o
-rw-r--r--    1 root     root       192275 Sep 22 09:47 snd-seq-instr.o
-rw-r--r--    1 root     root       185841 Sep 22 09:47 snd-seq-midi-emul.o
-rw-r--r--    1 root     root       181295 Sep 22 09:47 snd-seq-midi-event.o
-rw-r--r--    1 root     root       186550 Sep 22 09:47 snd-seq-midi.o
-rw-r--r--    1 root     root       391542 Sep 22 09:47 snd-seq.o
-rw-r--r--    1 root     root       247497 Sep 22 09:47 snd-timer.o