Disable load/store elimination. DO NOT MERGE

The optimization has several issues and it has been
effectively disabled by
    https://android-review.googlesource.com/103511
Disable it completely to avoid wasting compilation time.

Bug: 16862804
Change-Id: I42f69ae64170dc44f5fd6455b6a51c9bd3f93672
diff --git a/compiler/dex/frontend.cc b/compiler/dex/frontend.cc
index c44a116..3caefa2 100644
--- a/compiler/dex/frontend.cc
+++ b/compiler/dex/frontend.cc
@@ -42,7 +42,7 @@
 
 /* Default optimizer/debug setting for the compiler. */
 static uint32_t kCompilerOptimizerDisableFlags = 0 |  // Disable specific optimizations
-  // (1 << kLoadStoreElimination) |
+  (1 << kLoadStoreElimination) |
   // (1 << kLoadHoisting) |
   // (1 << kSuppressLoads) |
   // (1 << kNullCheckElimination) |