ImportedFile: remove md5 field

Ref #8025

Author: stsewd

readthedocs/projects/migrations/0072_remove_md5_field.py

@@ -0,0 +1,17 @@
+# Generated by Django 2.2.20 on 2021-04-15 18:40
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('projects', '0071_add_env_var_privacy'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='importedfile',
+            name='md5',
+        ),
+    ]

readthedocs/projects/models.py

@@ -1370,7 +1370,6 @@ class ImportedFile(models.Model):
     # of 4096 characters for most filesystems (including EXT4).
     # https://github.com/rtfd/readthedocs.org/issues/5061
     path = models.CharField(_('Path'), max_length=4096)
-    md5 = models.CharField(_('MD5 checksum'), max_length=255, null=True)
     commit = models.CharField(_('Commit'), max_length=255)
     build = models.IntegerField(_('Build id'), null=True)
     modified_date = models.DateTimeField(_('Modified date'), auto_now=True)