Revert "Avoid compiling monster methods in boot image"

This reverts commit 217e789288d5a321460ea2399e0eb7f3af6fc91b.

(cherry picked from commit f679fab9be8905505d26a62bea257641f0bb0168)

Change-Id: I058dd461d97bc5992b69941c7597a0aca25df38c
diff --git a/dex2oat/dex2oat.cc b/dex2oat/dex2oat.cc
index ec2713a..afa8495 100644
--- a/dex2oat/dex2oat.cc
+++ b/dex2oat/dex2oat.cc
@@ -993,7 +993,7 @@
 
   if (compiler_filter_string == NULL) {
     if (image) {
-      compiler_filter_string = "speed";
+      compiler_filter_string = "everything";
     } else {
 #if ART_SMALL_MODE
       compiler_filter_string = "interpret-only";