Using std::string instead of std::wstring for command-line args

Turns out that even if I manage to get Unicode command line args,
there still is no portable way of opening a file from a Unicode path.

src/main.cpp

@@ -9,7 +9,6 @@
 
 using std::exception;
 using std::string;
-using std::wstring;
 using std::unique_ptr;
 using std::map;
 using std::chrono::duration;
@@ -70,11 +69,10 @@ ptree createXmlTree(const path& filePath, const map<centiseconds, Phone>& phones
 int main(int argc, char *argv[]) {
 	try {
 		// Get sound file name
-		std::vector<wstring> commandLineArgs = getCommandLineArgs(argc, argv);
-		if (commandLineArgs.size() != 2) {
+		if (argc != 2) {
 			throw std::runtime_error("Invalid command line arguments. Call with sound file name as sole argument.");
 		}
-		wstring soundFileName = commandLineArgs[1];
+		string soundFileName = argv[1];
 
 		// Create audio streams
 		unique_ptr<AudioStream> audioStream = createAudioStream(soundFileName);

src/platform_tools.h

@@ -3,8 +3,6 @@
 
 #include <boost/filesystem.hpp>
 
-std::vector<std::wstring> getCommandLineArgs(int argc, char *argv[]);
-
 boost::filesystem::path getBinDirectory();
 
 #endif //LIPSYNC_PLATFORM_TOOLS_H

src/platform_tools_win.cpp

@@ -2,28 +2,6 @@
 #include "tools.h"
 #include "platform_tools.h"
 
-std::vector<std::wstring> getCommandLineArgs(int argc, char **argv) {
-	UNUSED(argv);
-
-	// Get command line as single Unicode string
-	LPWSTR commandLine = GetCommandLineW();
-
-	// Split into individual args
-	int argumentCount;
-	LPWSTR* arguments = CommandLineToArgvW(commandLine, &argumentCount);
-	if (!arguments) throw std::runtime_error("Could not determine command line arguments.");
-	auto _ = finally([&arguments](){ LocalFree(arguments); });
-	assert(argumentCount == argc);
-
-	// Convert to vector
-	std::vector<std::wstring> result;
-	for (int i = 0; i < argumentCount; i++) {
-		result.push_back(arguments[i]);
-	}
-
-	return result;
-}
-
 boost::filesystem::path getBinDirectory() {
 	std::vector<WCHAR> executablePath(MAX_PATH);