Remove NeedsDexCache logic from the compiler.

The compiled code and runtime stubs don't need to have direct access to
the dex cache anymore.

Test: test.py
Change-Id: Id3aab9b10445ba2599e1a9ffd8e36506a745bfec
diff --git a/compiler/optimizing/intrinsics.h b/compiler/optimizing/intrinsics.h
index a0f9420..96f178e 100644
--- a/compiler/optimizing/intrinsics.h
+++ b/compiler/optimizing/intrinsics.h
@@ -163,9 +163,8 @@
   explicit IntrinsicOptimizations(const HInvoke& invoke)
       : value_(invoke.GetIntrinsicOptimizations()) {}
 
-  static constexpr int kNumberOfGenericOptimizations = 2;
-  GENERIC_OPTIMIZATION(DoesNotNeedDexCache, 0);
-  GENERIC_OPTIMIZATION(DoesNotNeedEnvironment, 1);
+  static constexpr int kNumberOfGenericOptimizations = 1;
+  GENERIC_OPTIMIZATION(DoesNotNeedEnvironment, 0);
 
  protected:
   bool IsBitSet(uint32_t bit) const {