Bug 915555 - Don't redundantly cast an unnamed expression to an rvalue reference, because 1) it's dumb, and 2) gcc 4.4 warns about casting an rvalue reference to an rvalue reference (which is harmless due to C++11's rvalue semantics). f=hub, r=trivial

xpcom/glue/nsTHashtable.h

@@ -442,7 +442,7 @@ nsTHashtable<EntryType>::s_CopyEntry(PLDHashTable          *table,
   EntryType* fromEntry =
     const_cast<EntryType*>(reinterpret_cast<const EntryType*>(from));
 
-  new(to) EntryType(mozilla::Move(*fromEntry));
+  new(to) EntryType(*fromEntry);
 
   fromEntry->~EntryType();
 }