Revert "Merge pull request #13461 from edx/cdyer/test-block-types"

This reverts commit c050ccc318, reversing
changes made to 9ba9772239.

openedx/core/lib/xblock_utils/test_utils.py

@@ -1,26 +0,0 @@
-"""
-Utilities for testing xblocks
-"""
-
-from django.conf import settings
-
-from xmodule.modulestore.tests.factories import ItemFactory
-
-TEST_DATA_DIR = settings.COMMON_ROOT / u'test/data'
-
-
-def add_xml_block_from_file(block_type, filename, parent, metadata):
-    """
-    Create a block of the specified type with content included from the
-    specified XML file.
-
-    XML filenames are relative to common/test/data/blocks.
-    """
-    with open(TEST_DATA_DIR / u'blocks' / filename) as datafile:
-        return ItemFactory.create(
-            parent=parent,
-            category=block_type,
-            data=datafile.read().decode('utf-8'),
-            metadata=metadata,
-            display_name=u'problem'
-        )