Don't upload aliased arm builds anymore

They are literally a copy/paste of the armv7l builds, and have been
deprecated ever since they were renamed 2 years ago.

script/upload.py

@@ -4,7 +4,6 @@ import argparse
 import errno
 import hashlib
 import os
-import shutil
 import subprocess
 import sys
 import tempfile
@@ -237,14 +236,6 @@ def upload_electron(github, release, file_path, upload_to_s3):
   # Upload the checksum file.
   upload_sha256_checksum(release['tag_name'], file_path)
 
-  # Upload ARM assets without the v7l suffix for backwards compatibility
-  # TODO Remove for 2.0
-  if 'armv7l' in filename:
-    arm_filename = filename.replace('armv7l', 'arm')
-    arm_file_path = os.path.join(os.path.dirname(file_path), arm_filename)
-    shutil.copy2(file_path, arm_file_path)
-    upload_electron(github, release, arm_file_path, upload_to_s3)
-
 
 def upload_io_to_github(release, filename, filepath):
   print 'Uploading %s to Github' % \