PEP fixes

InvenTree/build/__init__.py

@@ -2,4 +2,4 @@
 The Build module is responsible for managing "Build" transactions.
 
 A Build consumes parts from stock to create new parts
-"""
+"""

InvenTree/build/models.py

@@ -55,7 +55,6 @@ class Build(models.Model):
     batch = models.CharField(max_length=100, blank=True, null=True,
                              help_text='Batch code for this build output')
 
-
     #: Date the build model was 'created'
     creation_date = models.DateField(auto_now=True, editable=False)