Revert "Optimize IMT"

Bug: 29188168 (for initial CL)
Bug: 29778499 (reason for revert)

This reverts commit badee9820fcf5dca5f8c46c3215ae1779ee7736e.

Change-Id: I32b8463122c3521e233c34ca95c96a5078e88848
diff --git a/compiler/optimizing/inliner.cc b/compiler/optimizing/inliner.cc
index 8f2db3d..c67b2d5 100644
--- a/compiler/optimizing/inliner.cc
+++ b/compiler/optimizing/inliner.cc
@@ -656,8 +656,8 @@
     }
     ArtMethod* new_method = nullptr;
     if (invoke_instruction->IsInvokeInterface()) {
-      new_method = ic.GetTypeAt(i)->GetImt(pointer_size)->Get(
-          method_index % ImTable::kSize, pointer_size);
+      new_method = ic.GetTypeAt(i)->GetEmbeddedImTableEntry(
+          method_index % mirror::Class::kImtSize, pointer_size);
       if (new_method->IsRuntimeMethod()) {
         // Bail out as soon as we see a conflict trampoline in one of the target's
         // interface table.