Removed a configure dependancy on SOX for IIO.

Removed a spurious initOK label in the driver_initialize function.

linux/iio/JackIIODriver.cpp

@@ -202,7 +202,6 @@ SERVER_EXPORT Jack::JackDriverClientInterface* driver_initialize(Jack::JackLocke
     if (ret!=NO_ERROR)
         goto initError;
 
-initOK: // iio_driver ok, now create the threaded_driver
     threaded_driver = new Jack::JackThreadedDriver(iio_driver);
     if (threaded_driver) {
         bool capture=true, playback=false, monitor=false;

linux/wscript

@@ -19,9 +19,6 @@ def configure(conf):
     conf.env['BUILD_DRIVER_IIO'] = conf.is_defined('HAVE_GTKIOSTREAM')
     conf.check_cfg(package='eigen3', atleast_version='3.1.2', args='--cflags --libs', mandatory=False)
     conf.env['BUILD_DRIVER_IIO'] += conf.is_defined('HAVE_EIGEN3')
-    conf.check_cfg(package='sox', atleast_version='14.4.0', args='--cflags --libs', mandatory=False)
-    conf.env['BUILD_DRIVER_IIO'] += conf.is_defined('HAVE_SOX')
-
 
 def create_jack_driver_obj(bld, target, sources, uselib = None):
     driver = bld(features = ['c', 'cxx', 'cxxshlib', 'cshlib'])