cleanup: drop unused import from pywatchman

Caught by PyCharm.

Differential Revision: https://phab.mercurial-scm.org/D7735

hgext/fsmonitor/pywatchman/capabilities.py

@@ -1,77 +1,75 b''
 # Copyright 2015 Facebook, Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are met:
 #
 #  * Redistributions of source code must retain the above copyright notice,
 #    this list of conditions and the following disclaimer.
 #
 #  * Redistributions in binary form must reproduce the above copyright notice,
 #    this list of conditions and the following disclaimer in the documentation
 #    and/or other materials provided with the distribution.
 #
 #  * Neither the name Facebook nor the names of its contributors may be used to
 #    endorse or promote products derived from this software without specific
 #    prior written permission.
 #
 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 # DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 # SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 # CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 # OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 # no unicode literals
 from __future__ import absolute_import, division, print_function
 
-import re
-
 
 def parse_version(vstr):
     res = 0
     for n in vstr.split("."):
         res = res * 1000
         res = res + int(n)
     return res
 
 
 cap_versions = {
     "cmd-watch-del-all": "3.1.1",
     "cmd-watch-project": "3.1",
     "relative_root": "3.3",
     "term-dirname": "3.1",
     "term-idirname": "3.1",
     "wildmatch": "3.7",
 }
 
 
 def check(version, name):
     if name in cap_versions:
         return version >= parse_version(cap_versions[name])
     return False
 
 
 def synthesize(vers, opts):
     """ Synthesize a capability enabled version response
         This is a very limited emulation for relatively recent feature sets
     """
     parsed_version = parse_version(vers["version"])
     vers["capabilities"] = {}
     for name in opts["optional"]:
         vers["capabilities"][name] = check(parsed_version, name)
     failed = False  # noqa: F841 T25377293 Grandfathered in
     for name in opts["required"]:
         have = check(parsed_version, name)
         vers["capabilities"][name] = have
         if not have:
             vers["error"] = (
                 "client required capability `"
                 + name
                 + "` is not supported by this server"
             )
     return vers