Remove the cherrypick script

We only needed it for migrating cherrypicks between the unified repo and
the ansible-modules-* repos.  Now that we aren't supporting 2.3, we no
longer need this script.

hacking/cherrypick.py

@@ -1,53 +0,0 @@
-#!/usr/bin/env python3
-
-import os
-import sh
-import sys
-import tempfile
-
-REPO_PATH = {
-    'extras': '/srv/ansible/stable-2.2/lib/ansible/modules/extras',
-    'core': '/srv/ansible/stable-2.2/lib/ansible/modules/core'
-}
-
-
-if __name__ == '__main__':
-    commit_hash = sys.argv[1]
-    which_modules = sys.argv[2]
-    git = sh.git.bake('--no-pager', _tty_out=False)
-    try:
-        # Get the change
-        git('checkout', 'devel')
-        patch = git('format-patch', '-1', '--stdout', commit_hash).stdout
-    finally:
-        git('checkout', '-')
-
-    # Transform the change for the new repo
-    patch = patch.replace(b'lib/ansible/modules/', b'')
-    new_patch = []
-    patch_stream = (l for l in patch.split(b'\n'))
-    for line in patch_stream:
-        if line.strip() == b'---':
-            new_patch.append(b'(cherry picked from %s)' % commit_hash.encode('utf-8'))
-            new_patch.append(line)
-            break
-        new_patch.append(line)
-    new_patch.extend(list(patch_stream))
-
-    # Save the patch
-    try:
-        fh, patchfilename = tempfile.mkstemp()
-        os.write(fh, b'\n'.join(new_patch))
-        os.close(fh)
-
-        # Apply the patch
-        try:
-            orig_dir = os.getcwd()
-            os.chdir(REPO_PATH[which_modules])
-            git('am', patchfilename)
-        finally:
-            os.chdir(orig_dir)
-    except:
-        print("Problem occurred.  Patch saved in: {0}".format(patchfilename))
-    else:
-        os.remove(patchfilename)