Refactor new KoReader importer a bit

vrobbler/apps/books/tests/conftest.py

@@ -2,11 +2,7 @@ import hashlib
 import pytest
 import random
 
-from vrobbler.apps.books.koreader import (
-    KoReaderBookColumn,
-    KoReaderImporter,
-    KoReaderPageStatColumn,
-)
+from vrobbler.apps.books.koreader import KoReaderBookColumn
 
 ordinal = lambda n: "%d%s" % (
     n,
@@ -113,21 +109,6 @@ class KoReaderBookRows:
         self._generate_random_page_stats_rows()
 
 
-@pytest.fixture
-def koreader_book_row():
-    return KoReaderBookRows(book_count=1).BOOK_ROWS[0]
-
-
-@pytest.fixture
-def koreader_book_rows():
-    return KoReaderBookRows(book_count=4).BOOK_ROWS
-
-
 @pytest.fixture
 def koreader_rows():
     return KoReaderBookRows(book_count=1)
-
-
-@pytest.fixture
-def koreader_rows_for_pages():
-    return KoReaderBookRows(book_count=1)