Remove unnecessary filler parameter in the sample model
Remove unnecessary filler parameter in the sample model

In bvlc_googlenet model, unnecessary filler parameters, 'std', were used
for Xavier weight fillers.

longjon/caffe,gnina/gnina,gnina/gnina,CZCV/s-dilation-caffe,gogartom/caffe-textmaps,gnina/gnina,tackgeun/caffe,tackgeun/caffe,wangg12/caffe,CZCV/s-dilation-caffe,gnina/gnina,gogartom/caffe-textmaps,longjon/caffe,gogartom/caffe-textmaps,gnina/gnina,tackgeun/caffe,longjon/caffe,CZCV/s-dilation-caffe,gogartom/caffe-textmaps,CZCV/s-dilation-caffe,wangg12/caffe,wangg12/caffe,longjon/caffe,wangg12/caffe,gnina/gnina,tackgeun/caffe