drm/amd/display: Remove break after return

Remove break after return since it will never be reached.
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/clk_mgr/clk_mgr.c

@@ -340,7 +340,6 @@ struct clk_mgr *dc_clk_mgr_create(struct dc_context *ctx, struct pp_smu_funcs *p
 
 	    dcn32_clk_mgr_construct(ctx, clk_mgr, pp_smu, dccg);
 	    return &clk_mgr->base;
-	    break;
 	}
 
 	case AMDGPU_FAMILY_GC_11_0_1: {