dsp: remove export symbol for static functions

Export symbol cannot be added for static functions.

Change-Id: Ief55b7868f2c16e5a11681e24432561d45765e52
Signed-off-by: Vikram Panduranga <[email protected]>

dsp/msm_audio_ion.c

@@ -529,7 +529,6 @@ err:
 	*dma_buf = NULL;
 	return rc;
 }
-EXPORT_SYMBOL(msm_audio_ion_import);
 
 /**
  * msm_audio_ion_free -
@@ -558,7 +557,6 @@ static int msm_audio_ion_free(struct dma_buf *dma_buf, struct msm_audio_ion_priv
 
 	return 0;
 }
-EXPORT_SYMBOL(msm_audio_ion_free);
 
 /**
  * msm_audio_ion_crash_handler -