Drop unused imports in tests.

tests/comparators/test_ico_image.py

@@ -26,7 +26,6 @@ from ..utils.data import load_fixture, get_data
 from ..utils.tools import (
     skip_unless_tools_exist,
     skip_unless_tool_is_at_least,
-    skip_unless_tool_is_between,
 )
 from .test_jpeg_image import identify_version
 

tests/comparators/test_macho.py

@@ -20,7 +20,6 @@
 # along with diffoscope.  If not, see <https://www.gnu.org/licenses/>.
 
 import pytest
-import os.path
 
 from diffoscope.config import Config
 from diffoscope.comparators.macho import MachoFile

tests/comparators/test_ocaml.py

@@ -24,7 +24,7 @@ from diffoscope.comparators.ocaml import OcamlInterfaceFile
 from diffoscope.comparators.binary import FilesystemFile
 from diffoscope.comparators.utils.specialize import specialize
 
-from ..utils.data import load_fixture, get_data
+from ..utils.data import get_data
 from ..utils.tools import skip_unless_tool_is_at_least
 from ..utils.nonexisting import assert_non_existing
 

tests/comparators/test_text.py

@@ -20,7 +20,6 @@
 
 import codecs
 
-from diffoscope.comparators.text import TextFile
 from diffoscope.comparators.binary import FilesystemFile
 from diffoscope.comparators.utils.specialize import specialize
 

tests/test_source.py

@@ -19,7 +19,6 @@
 
 import os
 import glob
-import diffoscope
 import subprocess
 
 from .utils.tools import skip_unless_tool_is_at_least