Remove CodeItem accessor functions

These are replaced by the accessor helpers.

Bug: 63756964
Test: test-art-host
Test: test/testrunner/testrunner.py --host -j30

Change-Id: Ic93d60b68b684eeb5f69be286b4e15b8f8f97542
diff --git a/runtime/dex_to_dex_decompiler.h b/runtime/dex_to_dex_decompiler.h
index d7cb164..804b7e8 100644
--- a/runtime/dex_to_dex_decompiler.h
+++ b/runtime/dex_to_dex_decompiler.h
@@ -29,7 +29,8 @@
 // to non-const has too many repercussions on the code base. We make it
 // consistent with DexToDexCompiler, but we should really change it to
 // DexFile::CodeItem*.
-bool ArtDecompileDEX(const DexFile::CodeItem& code_item,
+bool ArtDecompileDEX(const DexFile* dex_file,
+                     const DexFile::CodeItem& code_item,
                      const ArrayRef<const uint8_t>& quickened_data,
                      bool decompile_return_instruction);