docs/ci: drop stale local-precommit/release.sh references — CI is the only gate

.github/workflows/ci.yml

@@ -167,9 +167,8 @@ jobs:
     # to agree is what a release candidate is for.
     #
     # `if` SKIPS the job (it does not queue). A queued job would be far worse
-    # than a slow one: release.sh's CI gate refuses while any run for the
-    # commit is still in progress, so a never-scheduled job blocks releases
-    # silently -- see the note on real-media in qa.yml.
+    # than a slow one: a never-scheduled job leaves the run pending forever, so
+    # the branch's required checks never report complete.
     needs: resolve-msrv
     if: github.ref_name == 'qa' || github.ref_name == 'main'
     runs-on: macos-latest
@@ -193,9 +192,8 @@ jobs:
     # to agree is what a release candidate is for.
     #
     # `if` SKIPS the job (it does not queue). A queued job would be far worse
-    # than a slow one: release.sh's CI gate refuses while any run for the
-    # commit is still in progress, so a never-scheduled job blocks releases
-    # silently -- see the note on real-media in qa.yml.
+    # than a slow one: a never-scheduled job leaves the run pending forever, so
+    # the branch's required checks never report complete.
     needs: resolve-msrv
     if: github.ref_name == 'qa' || github.ref_name == 'main'
     runs-on: windows-latest

.github/workflows/qa.yml

@@ -15,9 +15,8 @@ name: qa
 # one being released, which is the exact failure this branch exists to prevent.
 #
 # What this gate CANNOT cover: `disc://` and real `iso://` need physical media,
-# and no hosted runner has an optical drive or the image hoard. Those run on a
-# self-hosted runner (see the media job at the end) and are the one leg that
-# stays on hardware.
+# and no hosted runner has an optical drive or the image hoard. That coverage
+# lives in freemkv's qa.yml (the real-media EC2 matrix), not in this file.
 on:
   push:
     branches: [qa]