community/py2-setuptools: move from main

So that python2 could be moved to community, see #11577

main/py2-setuptools/APKBUILD → community/py2-setuptools/APKBUILD

@@ -14,6 +14,8 @@ source="$_pkgname-$pkgver.tar.gz::https://github.com/pypa/$_pkgname/archive/v$pk
 builddir="$srcdir/$_pkgname-$pkgver"
 
 prepare() {
+	default_prepare
+
 	python2 bootstrap.py
 }