Revert "Adding getModelState API to sound trigger"

This reverts commit 73e63e662c4638091f0cd0efb11dce47341f817d.

Reason for revert: fix build breakage

Change-Id: I37d33bd2536f1917ced8a1ba816f336e7c9bb4e8
diff --git a/soundtrigger/2.0/default/SoundTriggerHalImpl.h b/soundtrigger/2.0/default/SoundTriggerHalImpl.h
index fbe24c1..5a9f0e1 100644
--- a/soundtrigger/2.0/default/SoundTriggerHalImpl.h
+++ b/soundtrigger/2.0/default/SoundTriggerHalImpl.h
@@ -167,11 +167,8 @@
     static void recognitionCallback(struct sound_trigger_recognition_event* halEvent, void* cookie);
 
     const char* mModuleName;
-
-    volatile atomic_uint_fast32_t mNextModelId;
-
-   protected:
     struct sound_trigger_hw_device* mHwDevice;
+    volatile atomic_uint_fast32_t mNextModelId;
     DefaultKeyedVector<int32_t, sp<SoundModelClient> > mClients;
     Mutex mLock;
 };