Remove Django <1.10 compatability code

djclick/adapter.py

@@ -4,17 +4,9 @@
 
 import click
 
-from django import get_version, VERSION as DJANGO_VERSION
 from django.core.management import CommandError
 
 
-class OptionParseAdapter(object):
-    """Django pre-1.10-compatible adapter, deprecated"""
-
-    def parse_args(self, args):
-        return (self, None)  # NOCOV
-
-
 class ArgumentParserDefaults(object):
     def __init__(self, args):
         self._args = args
@@ -80,10 +72,8 @@ def create_parser(self, progname, subcommand):
         """
         Called when run through `call_command`.
         """
-        if DJANGO_VERSION >= (1, 10):
-            return ArgumentParserAdapter()
-        else:  # NOCOV
-            return OptionParseAdapter()
+        return ArgumentParserAdapter()
+
 
     def print_help(self, prog_name, subcommand):
         prog_name = "{} {}".format(prog_name, subcommand)