py3: stop exporting urlparse from pycompat and util (API)

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Functions formerly available on this object/module can now be accessed
via {pycompat,util}.urlreq.

mercurial/pycompat.py

@@ -22,14 +22,12 b' if not ispy3:'
     import httplib
     import Queue as _queue
     import SocketServer as socketserver
-    import urlparse
     import xmlrpclib
 else:
     import http.client as httplib
     import pickle
     import queue as _queue
     import socketserver
-    import urllib.parse as urlparse
     import xmlrpc.client as xmlrpclib
 
 if ispy3:

mercurial/util.py

@@ -60,7 +60,6 b' stdin = pycompat.stdin'
 stdout = pycompat.stdout
 stringio = pycompat.stringio
 urlerr = pycompat.urlerr
-urlparse = pycompat.urlparse
 urlreq = pycompat.urlreq
 xmlrpclib = pycompat.xmlrpclib