Bluetooth: Remove scheduler-service dependency

Bug: 38178265
Test: Bluetooth enable/disable
      adb shell stop && adb shell VtsHalBluetoothV1_TargetTest

Change-Id: I7f892bad73f72b46b7b1720bda267fdddad21948
diff --git a/bluetooth/1.0/default/service.cpp b/bluetooth/1.0/default/service.cpp
index a588c37..3a7aad0 100644
--- a/bluetooth/1.0/default/service.cpp
+++ b/bluetooth/1.0/default/service.cpp
@@ -20,8 +20,8 @@
 
 #include <hidl/LegacySupport.h>
 
-// Add an extra thread for calls to the scheduler service.
-static const size_t kMaxThreads = 2;
+// Extra threads make priority inheritance faster.
+static const size_t kMaxThreads = 5;
 
 // Generated HIDL files
 using android::hardware::bluetooth::V1_0::IBluetoothHci;