Revert "Optimizing: Tag basic block allocations with their source."

Reverting so that we can have more discussion about the STL API.

This reverts commit 91e11c0c840193c6822e66846020b6647de243d5.

Change-Id: I187fe52f2c16b6e7c5c9d49c42921eb6c7063dba
diff --git a/compiler/dex/mir_graph.h b/compiler/dex/mir_graph.h
index 29f772d..bcfd440 100644
--- a/compiler/dex/mir_graph.h
+++ b/compiler/dex/mir_graph.h
@@ -379,7 +379,7 @@
         terminated_by_return(), dominates_return(), use_lvn(), first_mir_insn(),
         last_mir_insn(), data_flow_info(), dominators(), i_dominated(), dom_frontier(),
         predecessors(allocator->Adapter(kArenaAllocBBPredecessors)),
-        successor_blocks(allocator->Adapter(kArenaAllocSuccessors)) {
+        successor_blocks(allocator->Adapter(kArenaAllocSuccessor)) {
   }
   BasicBlockId id;
   BasicBlockId dfs_id;