Clean up nvcc compiler warnings in utility_ops.cu
Clean up nvcc compiler warnings in utility_ops.cu

Summary: These `template` qualifiers are unnecessary and throw warnings

Reviewed By: akyrola, wickedfoo

Differential Revision: D5327333

fbshipit-source-id: 35bccbf410beb9311f3776747267c06f5ed7b620

bwasti/caffe2,bwasti/caffe2,davinwang/caffe2,pietern/caffe2,sf-wind/caffe2,xzturn/caffe2,Yangqing/caffe2,Yangqing/caffe2,Yangqing/caffe2,sf-wind/caffe2,davinwang/caffe2,davinwang/caffe2,pietern/caffe2,davinwang/caffe2,Yangqing/caffe2,caffe2/caffe2,bwasti/caffe2,xzturn/caffe2,xzturn/caffe2,Yangqing/caffe2,xzturn/caffe2,davinwang/caffe2,pietern/caffe2,sf-wind/caffe2,sf-wind/caffe2,xzturn/caffe2,sf-wind/caffe2,bwasti/caffe2,bwasti/caffe2,pietern/caffe2,pietern/caffe2