QCoreApplication: Removed out-of-date docs (argv() method).

QCoreApplication::argv() method was obsolete in Qt4.8
and removed in Qt5.0.

Change-Id: I217402f774f5509c8ca317a35c831ffa5ac2af06
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

src/corelib/kernel/qcoreapplication.cpp

@@ -394,7 +394,7 @@ QCoreApplicationPrivate::QCoreApplicationPrivate(int &aargc, char **aargv, uint
     static const char *const empty = "";
     if (argc == 0 || argv == 0) {
         argc = 0;
-        argv = (char **)∅ // ouch! careful with QCoreApplication::argv()!
+        argv = (char **)∅
     }
 #ifdef Q_OS_WIN
     qCopy(argv, argv + argc, origArgv);
@@ -589,10 +589,6 @@ void QCoreApplicationPrivate::initLocale()
     Note that some arguments supplied by the user may have been
     processed and removed by QCoreApplication.
 
-    In cases where command line arguments need to be obtained using the
-    argv() function, you must convert them from the local string encoding
-    using QString::fromLocal8Bit().
-
     \section1 Locale Settings
 
     On Unix/Linux Qt is configured to use the system locale settings by