Remove DSV4 l_out backend override

src/llama-build-context.cpp

@@ -2515,12 +2515,6 @@ ggml_cgraph * llm_build_context::llama_build_graph(
             }
         }
 
-        // DSV4's residual/hyperconnection boundary must stay on the CPU until
-        // CUDA execution of the mixed HC post path has been parity-validated.
-        if (model.arch == LLM_ARCH_DEEPSEEK4 && strcmp(name, "l_out") == 0) {
-            ggml_backend_sched_set_tensor_backend(lctx.sched, cur, lctx.backend_cpu);
-        }
-
         // norm may be automatically assigned to the backend of the previous layer, increasing data transfer between backends
         // FIXME: fix in ggml_backend_sched
         const bool full_offload = lctx.model.n_gpu_layers > (int)lctx.model.hparams.n_layer;