libbt: remove MIN_NUMBER_A2DP_SDUS

 * this does not exist on aosp

Change-Id: If6e3d234a5ce6dadea2a3bf13fdfd24f1c3e216f
diff --git a/include/bdroid_buildcfg.h b/include/bdroid_buildcfg.h
index 2d2205d..a07323a 100644
--- a/include/bdroid_buildcfg.h
+++ b/include/bdroid_buildcfg.h
@@ -72,6 +72,5 @@
  * Ensure that A2DP data is scheduled in a way that suits the scheduling in Coex and BT-only scenarios
  */
 #define L2CAP_HIGH_PRI_MIN_XMIT_QUOTA       6
-#define MIN_NUMBER_A2DP_SDUS                3
 
 #endif