Remove long deprecated code from request wrapper (#9441)

rest_framework/request.py

@@ -422,13 +422,6 @@ def __getattr__(self, attr):
  except AttributeError:
  return self.__getattribute__(attr)
 
- @property
- def DATA(self):
- raise NotImplementedError(
- '`request.DATA` has been deprecated in favor of `request.data` '
- 'since version 3.0, and has been fully removed as of version 3.2.'
- )
-
  @property
  def POST(self):
  # Ensure that request.POST uses our request parsing.
@@ -447,13 +440,6 @@ def FILES(self):
  self._load_data_and_files()
  return self._files
 
- @property
- def QUERY_PARAMS(self):
- raise NotImplementedError(
- '`request.QUERY_PARAMS` has been deprecated in favor of `request.query_params` '
- 'since version 3.0, and has been fully removed as of version 3.2.'
- )
-
  def force_plaintext_errors(self, value):
  # Hack to allow our exception handler to force choice of
  # plaintext or html error responses.