Simplify: just remove broken .git reference, let webpack use JELLYFIN_VERSION

docker/Dockerfile

@@ -65,15 +65,8 @@ RUN apk add \
 WORKDIR ${SOURCE_DIR}
 COPY jellyfin-web .
 
-# Initialize git repo so webpack can get version info
-# Remove submodule .git reference first
-RUN rm -f .git \
- && git init \
- && git config user.email "build@jellyfin.org" \
- && git config user.name "Jellyfin Build" \
- && git add -A \
- && git commit -m "Build ${JELLYFIN_VERSION}" \
- && git tag -a "v${JELLYFIN_VERSION}" -m "Version ${JELLYFIN_VERSION}"
+# Remove broken submodule .git reference
+RUN rm -f .git
 
 RUN npm ci --no-audit --unsafe-perm \
  && npm run build:production \