remove msgcat commit hook on .po file fdo#40706

Originally it was planned to be useful, but it slows down
commit operations significantly. In practice only I commit
po files to this repo and I do the msgcat --no-wrap anyway.
Also, as reported in fdo#40706, when msgcat was not available,
empty file would be committed.

git-hooks/pre-commit

@@ -49,17 +49,6 @@ EOM
     exit( 1 );
 }
 
-# run 'msgcat --nowrap' when committing *.po files
-open(FILES, "git diff-index --cached --name-only $against |") || die "Cannot run git diff-index.";
-while (my $file = <FILES>) {
-    chomp($file);
-    if ($file =~ /\.po$/ && -e $file) {
-        system("msgcat --no-wrap $file > $file.KQnBbK6wQE;mv $file.KQnBbK6wQE $file;");
-        system("git add $file");
-    }
-}
-
-
 # all OK
 exit( 0 );
 # vi:set shiftwidth=4 expandtab: