qcacld-3.0: Remove obsolete DPH signature fields

The dpuSig and staSig fields in tDphHashNode are obsolete, so remove
them

Change-Id: I375e3dd66803ea98d1cb3b6fa01d9c4e95c31da8
CRs-Fixed: 2376929

core/mac/src/include/dph_global.h

@@ -170,9 +170,6 @@ typedef struct sDphHashNode {
 	uint8_t htSupportedChannelWidthSet:1;
 	uint8_t htSecondaryChannelOffset:2;
 	uint8_t rsvd1:2;
-	/* DPH HASH ENTRY FIELDS NEEDED IN HAL ONLY */
-	uint8_t dpuSig:4;       /* DPU signiture */
-	uint8_t staSig:4;       /* STA signature */
 	uint16_t bssId;         /* BSSID */
 	uint16_t assocId;       /* Association ID */
 	/* This is the real sta index generated by HAL */