Tarsnap: Remove --enable-sse2 and --disable-debug flags

* The --enable-sse2 flag causes the compile to hang when the
  llvm-gcc compiler that comes with Xcode 4 is used.
* The configure script doesn't recognize the --disable-debug option

Signed-off-by: Adam Vandenberg <flangy@gmail.com>

Formula/tarsnap.rb

@@ -8,9 +8,8 @@ class Tarsnap < Formula
   depends_on 'lzma' => :optional
 
   def install
-    system "./configure", "--disable-debug", "--disable-dependency-tracking",
-                          "--prefix=#{prefix}",
-                          "--enable-sse2"
+    system "./configure", "--disable-dependency-tracking",
+                          "--prefix=#{prefix}"
     system "make install"
   end
 end