drm/amdgpu: avoid to reset wave_front_size to 0

No need to clear it.  The values are set explicitly.
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c

@@ -4452,8 +4452,6 @@ static int gfx_v9_0_get_cu_info(struct amdgpu_device *adev,
 	if (!adev || !cu_info)
 		return -EINVAL;
 
-	memset(cu_info, 0, sizeof(*cu_info));
-
 	mutex_lock(&adev->grbm_idx_mutex);
 	for (i = 0; i < adev->gfx.config.max_shader_engines; i++) {
 		for (j = 0; j < adev->gfx.config.max_sh_per_se; j++) {