remove code below asserts in limitedmap.h (fixes a ToDo)

src/limitedmap.h

@@ -1,11 +1,11 @@
-// Copyright (c) 2012 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2012-2014 The Bitcoin developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_LIMITEDMAP_H
 #define BITCOIN_LIMITEDMAP_H
 
-#include <assert.h> // TODO: remove
+#include <assert.h>
 #include <map>
 
 /** STL-like map container that only keeps the N elements with the highest value. */
@@ -59,12 +59,11 @@ public:
                 return;
             }
         // Shouldn't ever get here
-        assert(0); //TODO remove me
-        map.erase(itTarget);
+        assert(0);
     }
     void update(const_iterator itIn, const mapped_type& v)
     {
-        //TODO: When we switch to C++11, use map.erase(itIn, itIn) to get the non-const iterator
+        // TODO: When we switch to C++11, use map.erase(itIn, itIn) to get the non-const iterator.
         iterator itTarget = map.find(itIn->first);
         if (itTarget == map.end())
             return;
@@ -77,9 +76,7 @@ public:
                 return;
             }
         // Shouldn't ever get here
-        assert(0); //TODO remove me
-        itTarget->second = v;
-        rmap.insert(make_pair(v, itTarget));
+        assert(0);
     }
     size_type max_size() const { return nMaxSize; }
     size_type max_size(size_type s)