Style fixes

InvenTree/part/models.py

@@ -187,20 +187,3 @@ class PartParameter(models.Model):
     class Meta:
         verbose_name = "Part Parameter"
         verbose_name_plural = "Part Parameters"
-
-
-class PartRevision(models.Model):
-    """ A PartRevision represents a change-notification to a Part
-    A Part may go through several revisions in its lifetime,
-    which should be tracked.
-    UniqueParts can have a single associated PartRevision
-    """
-
-    part = models.ForeignKey(Part, on_delete=models.CASCADE)
-
-    name = models.CharField(max_length=100)
-    description = models.CharField(max_length=500)
-    revision_date = models.DateField(auto_now_add=True)
-
-    def __str__(self):
-        return self.name

InvenTree/part/urls.py

@@ -1,4 +1,4 @@
-from django.conf.urls import url, include
+from django.conf.urls import url
 
 from . import views
 

InvenTree/part/views.py

@@ -1,4 +1,3 @@
-import django_filters
 from django_filters.rest_framework import FilterSet, DjangoFilterBackend
 from django_filters import NumberFilter