[Cherry-Pick][CI] Remove deprecated IPC unit tests (#7974) (#8029)

Author: EmmonsCurse

tests/cov_pytest.ini

@@ -12,3 +12,5 @@ addopts =
     --ignore=tests/e2e/golang_router
     --ignore=tests/v1/test_schedule_output.py
     --ignore=tests/graph_optimization/test_cuda_graph_dynamic_subgraph.py
+    --ignore=tests/e2e/test_ernie_03b_pd_decode_unified_attention.py
+    --ignore=tests/e2e/test_ernie_03b_pd_router_v1_ipc.py