guile: correct dependency for libreadline

package libguile already depends on libreadline

guile/PKGBUILD

@@ -90,8 +90,7 @@ check() {
 }
 
 package_guile() {
-  depends=("libguile=${pkgver}"
-           'libreadline')
+  depends=("libguile=${pkgver}")
 
   mkdir -p ${pkgdir}/usr/bin
   cp -rf ${srcdir}/dest/usr/bin ${pkgdir}/usr/
@@ -107,6 +106,7 @@ package_libguile() {
   depends=('gmp'
            'libcrypt'
            'libffi'
+           'libreadline'
            'libgc'
            'libunistring')
   groups=('libraries')