Remove non-redundant assembler.cc file.
Remove non-redundant assembler.cc file.

R=chrisha@chromium.org

Review URL: https://codereview.appspot.com/139590043

pombreda/syzygy,wangming28/syzygy,google/syzygy,ericmckean/syzygy,supriyantomaftuh/syzygy,wangming28/syzygy,sebmarchand/syzygy,ericmckean/syzygy,pombreda/syzygy,google/syzygy,google/syzygy,Eloston/syzygy,sebmarchand/syzygy,wangming28/syzygy,pombreda/syzygy,wangming28/syzygy,sebmarchand/syzygy,google/syzygy,supriyantomaftuh/syzygy,ericmckean/syzygy,sebmarchand/syzygy,ericmckean/syzygy,supriyantomaftuh/syzygy,pombreda/syzygy,supriyantomaftuh/syzygy,ericmckean/syzygy,sebmarchand/syzygy,Eloston/syzygy,pombreda/syzygy