Remove unused function.

I forgot to remove the function that was used in command line
parsing code.

lib/cppcheck.cpp

@@ -75,32 +75,6 @@ const char * CppCheck::version()
     return "1.44";
 }
 
-
-static void AddFilesToList(const std::string& FileList, std::vector<std::string>& PathNames)
-{
-    // to keep things initially simple, if the file can't be opened, just be
-    // silent and move on
-    // ideas : we could also require this should be an xml file, with the filenames
-    // specified in an xml structure
-    // we could elaborate this then, to also include the I-paths, ...
-    // basically for everything that makes the command line very long
-    // xml is a bonus then, since we can easily extend it
-    // we need a good parser then -> suggestion : TinyXml
-    // drawback : creates a dependency
-    std::ifstream Files(FileList.c_str());
-    if (Files)
-    {
-        std::string FileName;
-        while (std::getline(Files, FileName)) // next line
-        {
-            if (!FileName.empty())
-            {
-                PathNames.push_back(FileName);
-            }
-        }
-    }
-}
-
 unsigned int CppCheck::check()
 {
     exitcode = 0;