add install-info presence test to install script

PKGBUILD

@@ -2,7 +2,7 @@
 
 pkgname=grub
 pkgver=0.97
-pkgrel=16
+pkgrel=17
 pkgdesc="A GNU multiboot boot loader"
 arch=('i686' 'x86_64')
 license=('GPL')
@@ -74,9 +74,6 @@ build() {
   make DESTDIR=$pkgdir install || return 1
   install -D -m644 ../menu.lst $startdir/pkg/boot/grub/menu.lst
   install -D -m755 ../install-grub $startdir/pkg/sbin/install-grub
- 
-  rm -f $pkgdir/usr/share/info/dir || return 1
-  gzip /$pkgdir/usr/share/info/*
 
   if [ "$DESTARCH" = "x86_64" ]; then
     # fool makepkg into building a x86_64 package