Fix fuse4x autoreconf errors

Also removed the ENV vars since we set this stuff higher up now, and it compiled. So I'm guessing we're good.

Closes Homebrew/homebrew#10524.

Formula/fuse4x.rb

@@ -13,11 +13,7 @@ class Fuse4x < Formula
     # Build universal if the hardware can handle it---otherwise 32 bit only
     MacOS.prefer_64_bit? ? ENV.universal_binary : ENV.m32
 
-    gettext = Formula.factory('gettext')
-    ENV['ACLOCAL'] = "aclocal -I#{gettext.share}/aclocal"
-    ENV['AUTOCONF'] = "autoconf"
-    ENV['AUTOMAKE'] = "automake"
-    system "/usr/bin/autoreconf", "--force", "--install"
+    system "autoreconf", "--force", "--install"
 
     system "./configure", "--disable-dependency-tracking", "--disable-debug", "--disable-static", "--prefix=#{prefix}"
     system "make install"