vtkParticleTracerBase: remove unused function

Change-Id: I144b96e26ff22e4fab32f26bbfa4c80f72ba77c8
vtkImageCanvasSource2D: add missing newline at eof

Change-Id: Ifd4d9d18790d3c8ec07be320552e2daa47032671
Merge topic 'warnings-20141119' into master

cd783b3c vtkImageCanvasSource2D: add missing newline at eof
0351c12f vtkParticleTracerBase: remove unused function