edge: delete leftover empty migration-runner files

[colinmegill]

Release A's patch emptied the migration-runner files instead of deleting them. This deletes them, so edge is the pre-runner release plus only the safe-deploy hook changes. No observable change.

🤖 Generated with Claude Code

https://claude.ai/code/session_018NVGBuYCk4EZmiz4csUv9s

[github-actions]

Delphi Coverage Report

File	Stmts	Miss	Cover
init.py	2	0	100%
benchmarks/bench_pca.py	128	107	16%
benchmarks/bench_repness.py	81	65	20%
benchmarks/bench_update_votes.py	38	28	26%
benchmarks/benchmark_utils.py	34	0	100%
components/init.py	1	0	100%
components/config.py	165	70	58%
conversation/init.py	2	0	100%
conversation/conversation.py	1291	264	80%
conversation/group_vote_counts.py	38	2	95%
conversation/manager.py	131	42	68%
database/init.py	1	0	100%
database/dynamodb.py	395	178	55%
database/postgres.py	414	95	77%
delphi_storage/init.py	1	0	100%
delphi_storage/codec.py	295	23	92%
delphi_storage/golden_corpus.py	60	9	85%
empty_output.py	29	2	93%
engine_adapter.py	317	265	16%
job_child/init.py	325	49	85%
job_child/census.py	101	13	87%
pca_kmeans_rep/init.py	5	0	100%
pca_kmeans_rep/clusters.py	257	38	85%
pca_kmeans_rep/corr.py	98	17	83%
pca_kmeans_rep/group_k_smoother.py	28	0	100%
pca_kmeans_rep/legacy_kmeans.py	197	8	96%
pca_kmeans_rep/pca.py	162	19	88%
pca_kmeans_rep/repness.py	226	5	98%
poller/init.py	4	0	100%
poller/admission.py	318	15	95%
poller/backfill.py	936	32	97%
poller/capacity.py	485	27	94%
poller/capacity_queue.py	248	13	95%
poller/coordinator_bridge.py	317	317	0%
poller/math_writer.py	113	3	97%
poller/promotion.py	112	4	96%
poller/readiness.py	368	13	96%
poller/rebuild_child.py	133	6	95%
poller/service.py	665	52	92%
poller/worker_pool.py	140	0	100%
queue/executor.py	223	111	50%
regression/init.py	4	0	100%
regression/clojure_comparer.py	188	20	89%
regression/comparer.py	891	640	28%
regression/datasets.py	135	27	80%
regression/recorder.py	36	27	25%
regression/utils.py	130	85	35%
replay/init.py	2	0	100%
replay/attribution_capture.py	49	0	100%
replay/axis_continuity.py	347	24	93%
replay/certify.py	999	59	94%
replay/crosslang.py	128	2	98%
replay/decision_ties.py	55	8	85%
replay/diagnostics.py	50	7	86%
replay/driver.py	73	1	99%
replay/dsn_admission.py	36	1	97%
replay/equiv_query.py	10	0	100%
replay/event_ingress.py	95	1	99%
replay/fixture_bundle.py	815	62	92%
replay/fixture_config.py	266	11	96%
replay/fixture_extract.py	285	12	96%
replay/fixture_generate.py	103	1	99%
replay/fixture_samples.py	157	14	91%
replay/fixture_selection.py	119	0	100%
replay/fixture_survey.py	147	11	93%
replay/legacy_pca.py	29	17	41%
replay/polarity.py	319	25	92%
replay/poller_equiv.py	776	99	87%
replay/prodclone.py	193	2	99%
replay/real_data.py	146	10	93%
replay/schedule.py	205	10	95%
replay/served_math.py	159	4	97%
replay/shard_bench.py	189	65	66%
replay/stagecompare.py	890	161	82%
replay/stages.py	256	40	84%
replay/stepcompare.py	86	1	99%
replay/store.py	120	11	91%
replay/tie_capture.py	107	19	82%
replay/types.py	71	6	92%
run_math_pipeline.py	284	93	67%
tools/engine_rebuild.py	230	11	95%
types.py	22	0	100%
umap_narrative/501_calculate_comment_extremity.py	113	38	66%
umap_narrative/502_calculate_priorities.py	135	135	0%
umap_narrative/700_datamapplot_for_layer.py	502	502	0%
umap_narrative/701_static_datamapplot_for_layer.py	310	310	0%
umap_narrative/702_consensus_divisive_datamapplot.py	434	275	37%
umap_narrative/801_narrative_report_batch.py	837	620	26%
umap_narrative/803_check_batch_status.py	267	148	45%
umap_narrative/llm_factory_constructor/init.py	2	2	0%
umap_narrative/llm_factory_constructor/model_provider.py	234	234	0%
umap_narrative/polismath_commentgraph/init.py	1	0	100%
umap_narrative/polismath_commentgraph/cli.py	270	270	0%
umap_narrative/polismath_commentgraph/core/init.py	3	3	0%
umap_narrative/polismath_commentgraph/core/clustering.py	108	108	0%
umap_narrative/polismath_commentgraph/core/embedding.py	104	104	0%
umap_narrative/polismath_commentgraph/lambda_handler.py	219	219	0%
umap_narrative/polismath_commentgraph/schemas/init.py	2	0	100%
umap_narrative/polismath_commentgraph/schemas/dynamo_models.py	160	9	94%
umap_narrative/polismath_commentgraph/tests/conftest.py	17	17	0%
umap_narrative/polismath_commentgraph/tests/test_clustering.py	74	74	0%
umap_narrative/polismath_commentgraph/tests/test_embedding.py	55	55	0%
umap_narrative/polismath_commentgraph/tests/test_storage.py	87	87	0%
umap_narrative/polismath_commentgraph/utils/init.py	3	0	100%
umap_narrative/polismath_commentgraph/utils/converter.py	283	237	16%
umap_narrative/polismath_commentgraph/utils/group_data.py	331	289	13%
umap_narrative/polismath_commentgraph/utils/storage.py	580	466	20%
umap_narrative/reset_conversation.py	159	50	69%
umap_narrative/run_pipeline.py	379	229	40%
umap_narrative/topic_naming.py	148	148	0%
utils/cli_flags.py	15	0	100%
utils/clj_hash.py	44	0	100%
utils/env_flags.py	13	0	100%
utils/general.py	63	39	38%
utils/output_profile.py	66	2	97%
utils/serialization.py	10	5	50%
utils/vote_convention.py	159	5	97%
Total	24273	8159	66%