ACPICA: Utilities: conditionally compile backslash removal function

Only used for iASL and AcpiExec.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

drivers/acpi/acpica/utmisc.c

@@ -50,6 +50,7 @@
 #define _COMPONENT          ACPI_UTILITIES
 ACPI_MODULE_NAME("utmisc")
 
+#if defined ACPI_ASL_COMPILER || defined ACPI_EXEC_APP
 /*******************************************************************************
  *
  * FUNCTION:    ut_convert_backslashes
@@ -77,6 +78,7 @@ void ut_convert_backslashes(char *pathname)
 		pathname++;
 	}
 }
+#endif
 
 /*******************************************************************************
  *