Revert "ART: Reduce the instructions generated by packed switch."

This reverts commit 59f054d98f519a3efa992b1c688eb97bdd8bbf55.

bug:26121945

Change-Id: I8a5ad7ef1f1de8d44787c27528fa3f7f5c2e9cd3
diff --git a/compiler/optimizing/builder.h b/compiler/optimizing/builder.h
index ca71c32..c3979f3 100644
--- a/compiler/optimizing/builder.h
+++ b/compiler/optimizing/builder.h
@@ -90,9 +90,8 @@
 
   static constexpr const char* kBuilderPassName = "builder";
 
-  // The number of entries in a packed switch before we use a jump table or specified
-  // compare/jump series.
-  static constexpr uint16_t kSmallSwitchThreshold = 3;
+  // The number of entries in a packed switch before we use a jump table.
+  static constexpr uint16_t kSmallSwitchThreshold = 5;
 
  private:
   // Analyzes the dex instruction and adds HInstruction to the graph