bison: remove long_desc.

srcpkgs/bison/template

@@ -1,7 +1,7 @@
 # Template build file for 'bison'.
 pkgname=bison
 version=2.7
-revision=1
+revision=2
 build_style=gnu-configure
 hostmakedepends="perl"
 depends="m4"
@@ -11,6 +11,3 @@ homepage="http://www.gnu.org/software/bison/bison.html"
 license="GPL-3"
 distfiles="http://ftp.gnu.org/pub/gnu/bison/$pkgname-$version.tar.xz"
 checksum=43d8c5c466486031d5e7195a152ff49651ccac91599692e788b5ec5b693ca7fd
-long_desc="
- Bison is the GNU replacement for yacc(1). Some programs depend on
- extensions present in Bison."