[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_tables.h b/sound/isa/gus/gus_tables.h
index ed8e9d8..4adf098 100644
--- a/sound/isa/gus/gus_tables.h
+++ b/sound/isa/gus/gus_tables.h
@@ -23,6 +23,8 @@
 
 #ifdef __GUS_TABLES_ALLOC__
 
+#if 0
+
 unsigned int snd_gf1_scale_table[SNDRV_GF1_SCALE_TABLE_SIZE] =
 {
       8372,      8870,      9397,      9956,     10548,     11175,
@@ -49,6 +51,8 @@
   12123977,  12844906
 };
 
+#endif  /*  0  */
+
 unsigned short snd_gf1_atten_table[SNDRV_GF1_ATTEN_TABLE_SIZE] = {
   4095 /* 0   */,1789 /* 1   */,1533 /* 2   */,1383 /* 3   */,1277 /* 4   */,
   1195 /* 5   */,1127 /* 6   */,1070 /* 7   */,1021 /* 8   */,978  /* 9   */,