Revert "Merge pull request #2281 from xzyfer/list-equality"

This reverts commit 7abaa75, reversing
changes made to 6537833.

Author: xzyfer

src/ast.cpp

@@ -2220,7 +2220,6 @@ namespace Sass {
     if (List_Ptr_Const r = Cast<List>(&rhs)) {
       if (length() != r->length()) return false;
       if (separator() != r->separator()) return false;
-      if (is_bracketed() != r->is_bracketed()) return false;
       for (size_t i = 0, L = length(); i < L; ++i) {
         Expression_Obj rv = r->at(i);
         Expression_Obj lv = this->at(i);

src/ast.hpp

@@ -1096,7 +1096,6 @@ namespace Sass {
     {
       if (hash_ == 0) {
         hash_ = std::hash<std::string>()(sep_string());
-        hash_combine(hash_, std::hash<bool>()(is_bracketed()));
         for (size_t i = 0, L = length(); i < L; ++i)
           hash_combine(hash_, (elements()[i])->hash());
       }