we don't need the repos_changed semaphore file anymore

./g was doing 2 pair of git show-ref --head HEAD
to figure out if something had change... notwidthstanding that it is a
complete waste for the case of ./g clone, the only reason this was
done was to touch a ./clone/repos_changed file that used to be
used back in the 'build repo' days (pre 3.4)

binned that.

1 files changed, 0 insertions, 7 deletions

diff --git a/g b/g
index bf9275462c7f..bf6d8871ad85 100755
--- a/g
+++ b/g
@@ -232,9 +232,6 @@ for REPO in $DIRS ; do
                     ;;
             esac
 
-            # check for changes
-            HEADREF=$(git show-ref --head HEAD)
-
             # do it!
             if [ "$COMMAND" != "clone" -o ! -d $DIR ] ; then
                 if [ "$REPORT_REPOS" = "1" -a "$COMMAND" != "grep" ] ; then
@@ -254,10 +251,6 @@ for REPO in $DIRS ; do
                 update_hooks "$HOOKDIR"
             fi
 
-            # update stamp if the repo changed
-            NEWHEADREF=$(git show-ref --head HEAD)
-            [ "$HEADREF" != "$NEWHEADREF" ] && touch $CLONEDIR/repos_changed
-
             case "$COMMAND" in
                 pull|clone)
                     # update links