diff --git a/tools/aapt2/ResourceValues.cpp b/tools/aapt2/ResourceValues.cpp
index 728e35a..a5754e0 100644
--- a/tools/aapt2/ResourceValues.cpp
+++ b/tools/aapt2/ResourceValues.cpp
@@ -22,12 +22,12 @@
 #include <set>
 #include <sstream>
 
+#include "android-base/stringprintf.h"
+#include "androidfw/ResourceTypes.h"
+
 #include "Resource.h"
 #include "ResourceUtils.h"
 #include "ValueVisitor.h"
-#include "android-base/stringprintf.h"
-#include "androidfw/ResourceTypes.h"
-#include "io/StringStream.h"
 #include "util/Util.h"
 
 using ::aapt::text::Printer;
@@ -487,15 +487,6 @@
   }
 }
 
-std::string BinaryPrimitive::toPrettyString() const {
-  std::string str;
-  io::StringOutputStream out(&str);
-  text::Printer printer(&out);
-  this->PrettyPrint(&printer);
-  out.Flush();
-  return str;
-}
-
 Attribute::Attribute(uint32_t t)
     : type_mask(t),
       min_int(std::numeric_limits<int32_t>::min()),