Remove retry loop from GNU config fetch

Co-authored-by: brettcannon <54418+brettcannon@users.noreply.github.com>

Author: Copilot

autoconf/Dockerfile

@@ -49,11 +49,7 @@ RUN PATCH_VERBOSE=1 curl https://ftp.gnu.org/gnu/autoconf-archive/autoconf-archi
 RUN tmp=$(mktemp -d) \
     && git -C "$tmp" init \
     && git -C "$tmp" remote add origin https://git.savannah.gnu.org/git/config.git \
-    && for attempt in {1..5}; do \
-        git -C "$tmp" fetch --depth=1 origin "$CONFIG_GIT_REV" && break; \
-        if [[ "$attempt" == 5 ]]; then exit 1; fi; \
-        sleep $((attempt * 5)); \
-    done \
+    && git -C "$tmp" fetch --depth=1 origin "$CONFIG_GIT_REV" \
     && git -C "$tmp" checkout FETCH_HEAD -- config.guess config.sub \
     && install -m 755 "$tmp/config.guess" /usr/local/share/autoconf/build-aux/config.guess \
     && install -m 755 "$tmp/config.sub" /usr/local/share/autoconf/build-aux/config.sub \