Revert "Audio enabling for Pandaboard 4460"

This reverts commit 14100e871ee8c5f2d5611fcd587183ab013c602e.
diff --git a/audio_hw.c b/audio_hw.c
index 47b7e51..5d19190 100644
--- a/audio_hw.c
+++ b/audio_hw.c
@@ -908,7 +908,7 @@
         return -ENOMEM;
 
     adev->device.common.tag = HARDWARE_DEVICE_TAG;
-    adev->device.common.version = AUDIO_DEVICE_API_VERSION_CURRENT; // Linaro
+    adev->device.common.version = 0;
     adev->device.common.module = (struct hw_module_t *) module;
     adev->device.common.close = adev_close;