drm/amd/display: remove redundant initialization of variable result

The variable result is being initialized with a value that is never read
and it is being updated later with a new value.  The initialization is
redundant and can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c

@@ -151,7 +151,8 @@ bool edp_receiver_ready_T9(struct dc_link *link)
 	unsigned int tries = 0;
 	unsigned char sinkstatus = 0;
 	unsigned char edpRev = 0;
-	enum dc_status result = DC_OK;
+	enum dc_status result;
+
 	result = core_link_read_dpcd(link, DP_EDP_DPCD_REV, &edpRev, sizeof(edpRev));
 
      /* start from eDP version 1.2, SINK_STAUS indicate the sink is ready.*/
@@ -177,7 +178,7 @@ bool edp_receiver_ready_T7(struct dc_link *link)
 {
 	unsigned char sinkstatus = 0;
 	unsigned char edpRev = 0;
-	enum dc_status result = DC_OK;
+	enum dc_status result;
 
 	/* use absolute time stamp to constrain max T7*/
 	unsigned long long enter_timestamp = 0;