Debugger: Use bin editor widget for standalone-memory views.

Remove MemoryViewWidget/RegisterMemoryViewWidget
in favour of MemoryView/RegisterMemoryView based on the bin
editor widget.

src/plugins/debugger/gdb/gdbengine.cpp

@@ -3794,10 +3794,8 @@ void GdbEngine::updateLocals(const QVariant &cookie)
         updateLocalsPython(false, QByteArray());
     else
         updateLocalsClassic(cookie);
-    updateMemoryViews();
 }
 
-
 // Parse a local variable from GdbMi.
 WatchData GdbEngine::localVariable(const GdbMi &item,
                                    const QStringList &uninitializedVariables,