dsound: Declare some variables static

[Andrew Talbot]

Please give feedback if rejecting this patch.

Thanks,

-- Andy.
---
Changelog:
    dsound: Declare some variables static.

diff --git a/dlls/dsound/dsound_main.c b/dlls/dsound/dsound_main.c
index 5ebf2e6..206c465 100644
--- a/dlls/dsound/dsound_main.c
+++ b/dlls/dsound/dsound_main.c
@@ -95,8 +95,8 @@ int ds_snd_queue_max = 10;
 int ds_snd_queue_min = 6;
 int ds_snd_shadow_maxsize = 2;
 int ds_hw_accel = DS_HW_ACCEL_FULL;
-int ds_default_playback = 0;
-int ds_default_capture = 0;
+static int ds_default_playback;
+static int ds_default_capture;
 int ds_default_sample_rate = 44100;
 int ds_default_bits_per_sample = 16;
 
diff --git a/dlls/dsound/dsound_private.h b/dlls/dsound/dsound_private.h
index c16f1c1..b23e242 100644
--- a/dlls/dsound/dsound_private.h
+++ b/dlls/dsound/dsound_private.h
@@ -37,8 +37,6 @@ extern int ds_snd_queue_max;
 extern int ds_snd_queue_min;
 extern int ds_snd_shadow_maxsize;
 extern int ds_hw_accel;
-extern int ds_default_playback;
-extern int ds_default_capture;
 extern int ds_default_sample_rate;
 extern int ds_default_bits_per_sample;