Revert^4 "Compiler changes for bitstring based type checks."

Disabled the build time flag. (No image version bump needed.)

Bug: 26687569
Bug: 64692057
Bug: 76420366

This reverts commit 3fbd3ad99fad077e5c760e7238bcd55b07d4c06e.

Change-Id: I5d83c4ce8a7331c435d5155ac6e0ce1c77d60004
diff --git a/compiler/optimizing/graph_checker.h b/compiler/optimizing/graph_checker.h
index 0f0b49d..dbedc40 100644
--- a/compiler/optimizing/graph_checker.h
+++ b/compiler/optimizing/graph_checker.h
@@ -71,6 +71,12 @@
   void VisitTryBoundary(HTryBoundary* try_boundary) OVERRIDE;
   void VisitTypeConversion(HTypeConversion* instruction) OVERRIDE;
 
+  void CheckTypeCheckBitstringInput(HTypeCheckInstruction* check,
+                                    size_t input_pos,
+                                    bool check_value,
+                                    uint32_t expected_value,
+                                    const char* name);
+  void HandleTypeCheckInstruction(HTypeCheckInstruction* instruction);
   void HandleLoop(HBasicBlock* loop_header);
   void HandleBooleanInput(HInstruction* instruction, size_t input_index);