diff --git a/.github/label-pr-config.yml b/.github/label-pr-config.yml
index 622d3332899213..3961cda0e38724 100644
--- a/.github/label-pr-config.yml
+++ b/.github/label-pr-config.yml
@@ -47,7 +47,7 @@ subSystemLabels:
   /^\w+\.md$/: doc
   # Different variants of Makefile and build files
   /^(?:tools\/)?(?:Makefile|BSDmakefile|create_android_makefiles)$/: build, needs-ci
-  /^tools\/(?:install\.py|genv8constants\.py|getnodeversion\.py|js2c\.py|utils\.py|configure\.d\/.*)$/: build, python, needs-ci
+  /^tools\/(?:install\.py|getnodeversion\.py|js2c\.py|utils\.py|configure\.d\/.*)$/: build, python, needs-ci
   /^vcbuild\.bat$/: build, windows, needs-ci
   /^(?:android-)?configure|node\.gyp|common\.gypi$/: build, needs-ci
   # More specific tools
diff --git a/tools/genv8constants.py b/tools/genv8constants.py
deleted file mode 100755
index 01aa37cc715de0..00000000000000
--- a/tools/genv8constants.py
+++ /dev/null
@@ -1,118 +0,0 @@
-#!/usr/bin/env python
-
-#
-# genv8constants.py output_file libv8_base.a
-#
-# Emits v8dbg constants stored in libv8_base.a in a format suitable for the V8
-# ustack helper.
-#
-
-from __future__ import print_function
-import re
-import subprocess
-import sys
-import errno
-
-if len(sys.argv) != 3:
-  print("Usage: genv8constants.py outfile libv8_base.a")
-  sys.exit(2)
-
-outfile = open(sys.argv[1], 'w')
-try:
-  pipe = subprocess.Popen([ 'objdump', '-z', '-D', sys.argv[2] ],
-      bufsize=-1, stdout=subprocess.PIPE).stdout
-except OSError as e:
-  if e.errno == errno.ENOENT:
-    print('''
-      Node.js compile error: could not find objdump
-
-      Check that GNU binutils are installed and included in PATH
-      ''')
-  else:
-    print('problem running objdump: ', e.strerror)
-
-  sys.exit()
-
-pattern = re.compile('([0-9a-fA-F]{8}|[0-9a-fA-F]{16}) <(.*)>:')
-v8dbg = re.compile('^v8dbg.*$')
-numpattern = re.compile('^[0-9a-fA-F]{2} $')
-octets = 4
-
-outfile.write("""
-/*
- * File automatically generated by genv8constants. Do not edit.
- *
- * The following offsets are dynamically from libv8_base.a.  See src/v8ustack.d
- * for details on how these values are used.
- */
-
-#ifndef V8_CONSTANTS_H
-#define V8_CONSTANTS_H
-
-""")
-
-curr_sym = None
-curr_val = 0
-curr_octet = 0
-
-def out_reset():
-  global curr_sym, curr_val, curr_octet
-  curr_sym = None
-  curr_val = 0
-  curr_octet = 0
-
-def out_define():
-  global curr_sym, curr_val, curr_octet, outfile, octets
-  if curr_sym != None:
-    wrapped_val = curr_val & 0xffffffff
-    if curr_val & 0x80000000 != 0:
-      wrapped_val = 0x100000000 - wrapped_val
-      outfile.write("#define %s -0x%x\n" % (curr_sym.upper(), wrapped_val))
-    else:
-      outfile.write("#define %s 0x%x\n" % (curr_sym.upper(), wrapped_val))
-  out_reset()
-
-for line in pipe:
-  line = line.decode('utf-8')
-  if curr_sym != None:
-    #
-    # This bit of code has nasty knowledge of the objdump text output
-    # format, but this is the most obvious robust approach.  We could almost
-    # rely on looking at numbered fields, but some instructions look very
-    # much like hex numbers (e.g., "adc"), and we don't want to risk picking
-    # those up by mistake, so we look at character-based columns instead.
-    #
-    for i in range(0, 3):
-      # 6-character margin, 2-characters + 1 space for each field
-      idx = 6 + i * 3
-      octetstr = line[idx:idx+3]
-      if curr_octet > octets:
-        break
-
-      if not numpattern.match(octetstr):
-        break
-
-      curr_val += int('0x%s' % octetstr, 16) << (curr_octet * 8)
-      curr_octet += 1
-
-  match = pattern.match(line)
-  if match is None:
-    continue
-
-  # Print previous symbol
-  out_define()
-
-  v8match = v8dbg.match(match.group(2))
-  if v8match != None:
-    out_reset()
-    curr_sym = match.group(2)
-
-# Print last symbol
-out_define()
-
-outfile.write("""
-
-#endif /* V8_CONSTANTS_H */
-""")
-
-outfile.close()