qcacld-3.0: dfs: Remove zero cac files from build

Remove zero cac files from build

Change-Id: Ic1864a4d02e17458e9b2620e675b59c1b9066ced
CRs-Fixed: 2343692

Kbuild

@@ -425,10 +425,8 @@ DFS_OBJS +=	$(WLAN_COMMON_ROOT)/target_if/dfs/src/target_if_dfs_partial_offload.
 		$(DFS_CORE_SRC_DIR)/filtering/dfs_process_radarevent.o \
 		$(DFS_CORE_SRC_DIR)/filtering/dfs_staggered.o \
 		$(DFS_CORE_SRC_DIR)/filtering/dfs_radar.o \
-		$(DFS_CORE_SRC_DIR)/filtering/dfs_ar.o \
 		$(DFS_CORE_SRC_DIR)/filtering/dfs_partial_offload_radar.o \
-		$(DFS_CORE_SRC_DIR)/misc/dfs_filter_init.o \
-		$(DFS_CORE_SRC_DIR)/misc/dfs_zero_cac.o
+		$(DFS_CORE_SRC_DIR)/misc/dfs_filter_init.o
 endif
 
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