Disable app images for now

Until we figure out why there are crashes.

Bug: 26872785
Bug: 22858531
Change-Id: I1c5f187a7671bbd16aa6651aacb61ee8bbd44e57
diff --git a/runtime/oat_file_manager.cc b/runtime/oat_file_manager.cc
index de90f0a..6de9fab 100644
--- a/runtime/oat_file_manager.cc
+++ b/runtime/oat_file_manager.cc
@@ -40,7 +40,7 @@
 static constexpr bool kDuplicateClassesCheck = kIsDebugBuild;
 
 // If true, then we attempt to load the application image if it exists.
-static constexpr bool kEnableAppImage = true;
+static constexpr bool kEnableAppImage = false;
 
 const OatFile* OatFileManager::RegisterOatFile(std::unique_ptr<const OatFile> oat_file) {
   WriterMutexLock mu(Thread::Current(), *Locks::oat_file_manager_lock_);