drm/amd/powerplay: Delete a redundant memory setting in vega20_set_default_od8_setttings()

The memory was set to zero already by a call of the function “kzalloc”.
Thus remove an extra call of the function “memset” for this purpose.

This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/powerplay/vega20_ppt.c

@@ -1295,7 +1295,6 @@ static int vega20_set_default_od8_setttings(struct smu_context *smu)
 	if (!table_context->od8_settings)
 		return -ENOMEM;
 
-	memset(table_context->od8_settings, 0, sizeof(struct vega20_od8_settings));
 	od8_settings = (struct vega20_od8_settings *)table_context->od8_settings;
 
 	if (smu_feature_is_enabled(smu, FEATURE_DPM_SOCCLK_BIT)) {