remove duplicated input

Author: oesteban

nipype/interfaces/freesurfer/tests/test_auto_Tkregister2.py

@@ -8,8 +8,6 @@ def test_Tkregister2_inputs():
     environ=dict(nohash=True,
     usedefault=True,
     ),
-    fsl=dict(argstr='--fsl %s',
-    ),
     fsl_in_matrix=dict(argstr='--fsl %s',
     ),
     fsl_out=dict(argstr='--fslregout %s',

nipype/interfaces/freesurfer/utils.py

@@ -1216,8 +1216,6 @@ class Tkregister2InputSpec(FSTraitedSpec):
                         desc='set mov to be tal and reg to be tal xfm')
     movscale = traits.Float(argstr='--movscale %f',
                             desc='adjust registration matrix to scale mov')
-    fsl = File(exists=True, argstr='--fsl %s',
-               desc='use the matrix produced by FSL as initial registration')
     xfm = File(exists=True, argstr='--xfm %s',
                desc='use a matrix in MNI coordinates as initial registration')
     fsl_out = File(argstr='--fslregout %s',