Remove RSInfo

bug 19602994

RSInfo is no longer used.  Script-specific information is now passed via
.rs.info variable in the object file.  This patch removes RSInfo and the
old caching path which was closely tied to RSInfo.

Change-Id: Icb62ed848d1a262dd13d5c49652d034fcd0bb943
diff --git a/lib/Renderscript/RSScript.cpp b/lib/Renderscript/RSScript.cpp
index c93ca64..396b47d 100644
--- a/lib/Renderscript/RSScript.cpp
+++ b/lib/Renderscript/RSScript.cpp
@@ -17,7 +17,6 @@
 #include "bcc/Renderscript/RSScript.h"
 
 #include "bcc/Assert.h"
-#include "bcc/Renderscript/RSInfo.h"
 #include "bcc/Source.h"
 #include "bcc/Support/Log.h"
 
@@ -50,12 +49,11 @@
 }
 
 RSScript::RSScript(Source &pSource)
-  : Script(pSource), mInfo(nullptr), mCompilerVersion(0),
+  : Script(pSource), mCompilerVersion(0),
     mOptimizationLevel(kOptLvl3), mLinkRuntimeCallback(nullptr),
     mEmbedInfo(false) { }
 
 bool RSScript::doReset() {
-  mInfo = nullptr;
   mCompilerVersion = 0;
   mOptimizationLevel = kOptLvl3;
   return true;