Revert of Ship ES2015 sloppy-mode function hoisting, let, class

src/flag-definitions.h

Index: src/flag-definitions.h
diff --git a/src/flag-definitions.h b/src/flag-definitions.h
index 2758f31bf7951fd9d343951da7e54cf59e1d9b1a..8b8c4ccac9c947ff4be3ef4d99538760aa04a1e7 100644
--- a/src/flag-definitions.h
+++ b/src/flag-definitions.h
@@ -212,6 +212,9 @@
 #define HARMONY_STAGED(V)                                                 \
   V(harmony_proxies, "harmony proxies")                                   \
   V(harmony_reflect, "harmony Reflect API")                               \
+  V(harmony_sloppy, "harmony features in sloppy mode")                    \
+  V(harmony_sloppy_let, "harmony let in sloppy mode")                     \
+  V(harmony_sloppy_function, "harmony sloppy function block scoping")     \
   V(harmony_regexp_lookbehind, "harmony regexp lookbehind")
 
 // Features that are shipping (turned on by default, but internal flag remains).
@@ -224,10 +227,7 @@
   V(harmony_tolength, "harmony ToLength")                                 \
   V(harmony_tostring, "harmony toString")                                 \
   V(harmony_completion, "harmony completion value semantics")             \
-  V(harmony_regexps, "harmony regular expression extensions")             \
-  V(harmony_sloppy, "harmony features in sloppy mode")                    \
-  V(harmony_sloppy_let, "harmony let in sloppy mode")                     \
-  V(harmony_sloppy_function, "harmony sloppy function block scoping")
+  V(harmony_regexps, "harmony regular expression extensions")
 
 
 // Once a shipping feature has proved stable in the wild, it will be dropped