[ALSA] sound/isa/: cleanups

GUS Library
This patch contains the following possible cleanups:
- make needlesly global code static
- #if 0 the following unused global functions:
  - gus/gus_volume.c: snd_gf1_gvol_to_lvol_raw
  - gus/gus_volume.c: snd_gf1_calc_ramp_rate
  - gus/gus_volume.c: snd_gf1_compute_vibrato
  - gus/gus_volume.c: snd_gf1_compute_pitchbend
  - gus/gus_volume.c: snd_gf1_compute_freq
  - gus/gus_io.c: snd_gf1_i_adlib_write
  - gus/gus_io.c: snd_gf1_i_write_addr
  - gus/gus_io.c: snd_gf1_pokew
  - gus/gus_io.c: snd_gf1_peekw
  - gus/gus_io.c: snd_gf1_dram_setmem
  - gus/gus_io.c: snd_gf1_print_global_registers
  - gus/gus_io.c: snd_gf1_print_setup_registers
  - gus/gus_io.c: snd_gf1_peek_print_block
  - gus/gus_io.c: snd_gf1_print_setup_registers
  - gus/gus_io.c: snd_gf1_peek_print_block
- #if 0 the following unused global variable:
  - gus/gus_tables.h: snd_gf1_scale_table
- remove the following unneeded EXPORT_SYMBOL's:
  - gus/gus_main.c: snd_gf1_i_write16
  - gus/gus_main.c: snd_gf1_start
  - gus/gus_main.c: snd_gf1_stop

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/isa/gus/gus_volume.c b/sound/isa/gus/gus_volume.c
index b72bcfb..3d36f6c 100644
--- a/sound/isa/gus/gus_volume.c
+++ b/sound/isa/gus/gus_volume.c
@@ -55,6 +55,8 @@
 	return (e << 8) | m;
 }
 
+#if 0
+
 unsigned int snd_gf1_gvol_to_lvol_raw(unsigned short gf1_vol)
 {
 	unsigned int rvol;
@@ -108,6 +110,8 @@
 	return (range << 6) | (increment & 0x3f);
 }
 
+#endif  /*  0  */
+
 unsigned short snd_gf1_translate_freq(snd_gus_card_t * gus, unsigned int freq16)
 {
 	freq16 >>= 3;
@@ -120,6 +124,8 @@
 	return ((freq16 << 9) + (gus->gf1.playback_freq >> 1)) / gus->gf1.playback_freq;
 }
 
+#if 0
+
 short snd_gf1_compute_vibrato(short cents, unsigned short fc_register)
 {
 	static short vibrato_table[] =
@@ -208,3 +214,5 @@
 	}
 	return (unsigned short) fc;
 }
+
+#endif  /*  0  */