Remove gh-pages publishing from release script

The release script no longer needs to clone the gh-pages branch and
regenerate Jekyll index/mmdblookup pages — the new Hugo workflow on
main owns the docs site, and the doc/*.md files are now mounted as
content directly. There is no versioned doc tree on gh-pages to
preserve for this repo.

For STF-448.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: oschwald

.gitignore

@@ -8,7 +8,6 @@
 */.libs
 *~
 .\#*
-.gh-pages
 docs/.hugo_build.lock
 docs/public/
 /INSTALL

dev-bin/release.sh

@@ -111,45 +111,6 @@ make check
 make clean
 make safedist
 
-if [ ! -d .gh-pages ]; then
-    echo "Checking out gh-pages in .gh-pages"
-    git clone -b gh-pages git@github.com:maxmind/libmaxminddb.git .gh-pages
-    pushd .gh-pages
-else
-    echo "Updating .gh-pages"
-    pushd .gh-pages
-    git pull
-fi
-
-if [ -n "$(git status --porcelain)" ]; then
-    echo ".gh-pages is not clean" >&2
-    exit 1
-fi
-
-index=index.md
-cat <<EOF >$index
----
-layout: default
-title: libmaxminddb - a library for working with MaxMind DB files
-version: $version
----
-EOF
-
-cat ../doc/libmaxminddb.md >>$index
-
-mmdblookup=mmdblookup.md
-cat <<EOF >$mmdblookup
----
-layout: default
-title: mmdblookup - a utility to look up an IP address in a MaxMind DB file
-version: $version
----
-EOF
-
-cat ../doc/mmdblookup.md >>$mmdblookup
-
-git commit -m "Updated for $version" -a
-
 read -r -e -p "Push to origin? (y/n) " should_push
 
 if [ "$should_push" != "y" ]; then
@@ -159,8 +120,4 @@ fi
 
 git push
 
-popd
-
-git push
-
 gh release create --target "$(git branch --show-current)" -t "$version" -n "$notes" "$version" "$dist"