qcacld-3.0: Remove obsolete macro LOW_PRIORITY

After control path scheduler componentization cds_mq.h
LOW_PRIORITY macro is no longer used hence remove it.

Change-Id: I633e0eb8097eb1d035a4200018f3d96d6f34b59b
CRs-Fixed: 2000211

core/cds/inc/cds_mq.h

@@ -45,7 +45,6 @@
 #include <qdf_status.h>
 
 #define HIGH_PRIORITY 1
-#define LOW_PRIORITY 0
 
 /**---------------------------------------------------------------------------