mm-audio: Fix error for already destroyed mutexes.

-Avoid destruction of already destroyed mutexes.

Change-Id: I90ac8839d4f3cca66d0de356c4eb2f7d9c3b884f
diff --git a/mm-audio/aenc-aac/qdsp6/src/omx_aac_aenc.cpp b/mm-audio/aenc-aac/qdsp6/src/omx_aac_aenc.cpp
index 51b2056..25b4bea 100644
--- a/mm-audio/aenc-aac/qdsp6/src/omx_aac_aenc.cpp
+++ b/mm-audio/aenc-aac/qdsp6/src/omx_aac_aenc.cpp
@@ -444,8 +444,6 @@
 
     pthread_mutexattr_destroy(&m_out_th_attr_1);
     pthread_mutex_destroy(&m_out_th_lock_1);
-    pthread_mutex_destroy(&out_buf_count_lock);
-    pthread_mutex_destroy(&in_buf_count_lock);
     pthread_cond_destroy(&cond);
     pthread_cond_destroy(&in_cond);
     pthread_cond_destroy(&out_cond);
diff --git a/mm-audio/aenc-amrnb/qdsp6/src/omx_amr_aenc.cpp b/mm-audio/aenc-amrnb/qdsp6/src/omx_amr_aenc.cpp
index 47b984c..de0c063 100644
--- a/mm-audio/aenc-amrnb/qdsp6/src/omx_amr_aenc.cpp
+++ b/mm-audio/aenc-amrnb/qdsp6/src/omx_amr_aenc.cpp
@@ -434,8 +434,6 @@
 
     pthread_mutexattr_destroy(&m_out_th_attr_1);
     pthread_mutex_destroy(&m_out_th_lock_1);
-    pthread_mutex_destroy(&out_buf_count_lock);
-    pthread_mutex_destroy(&in_buf_count_lock);
     pthread_cond_destroy(&cond);
     pthread_cond_destroy(&in_cond);
     pthread_cond_destroy(&out_cond);
diff --git a/mm-audio/aenc-evrc/qdsp6/src/omx_evrc_aenc.cpp b/mm-audio/aenc-evrc/qdsp6/src/omx_evrc_aenc.cpp
index e8fb733..45020c1 100644
--- a/mm-audio/aenc-evrc/qdsp6/src/omx_evrc_aenc.cpp
+++ b/mm-audio/aenc-evrc/qdsp6/src/omx_evrc_aenc.cpp
@@ -431,8 +431,6 @@
 
     pthread_mutexattr_destroy(&m_out_th_attr_1);
     pthread_mutex_destroy(&m_out_th_lock_1);
-    pthread_mutex_destroy(&out_buf_count_lock);
-    pthread_mutex_destroy(&in_buf_count_lock);
     pthread_cond_destroy(&cond);
     pthread_cond_destroy(&in_cond);
     pthread_cond_destroy(&out_cond);