ASoC: Intel: remove unused functions

these functions were never called by anyone.
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/intel/atom/sst/sst_pvt.c

@@ -111,30 +111,6 @@ int sst_wait_interruptible(struct intel_sst_drv *sst_drv_ctx,
 
 }
 
-static unsigned long long read_shim_data(struct intel_sst_drv *sst, int addr)
-{
-	unsigned long long val = 0;
-
-	switch (sst->dev_id) {
-	case SST_MRFLD_PCI_ID:
-	case SST_BYT_ACPI_ID:
-		val = sst_shim_read64(sst->shim, addr);
-		break;
-	}
-	return val;
-}
-
-static void write_shim_data(struct intel_sst_drv *sst, int addr,
-				unsigned long long data)
-{
-	switch (sst->dev_id) {
-	case SST_MRFLD_PCI_ID:
-	case SST_BYT_ACPI_ID:
-		sst_shim_write64(sst->shim, addr, (u64) data);
-		break;
-	}
-}
-
 /*
  * sst_wait_timeout - wait on event for timeout
  *