Remove planned bootstrap setup compression support hooks

apps/bootstrap/managers.py

@@ -12,13 +12,6 @@ logger = logging.getLogger(__name__)
 
 
 class BootstrapSetupManager(models.Manager):
-    def explode(self, data):
-        """
-        Gets a compressed and compacted bootstrap setup and creates a new
-        database BootstrapSetup instance
-        """
-        pass
-
     def dump(self, serialization_format):
         """
         Get the current setup of Mayan in bootstrap format fixture

apps/bootstrap/models.py

@@ -66,13 +66,6 @@ class BootstrapSetup(models.Model):
 
         os.unlink(filepath)
 
-    def compress(self):
-        """
-        Return a compacted and compressed version of the BootstrapSetup
-        instance, meant for download.
-        """
-        return ''
-
     @property
     def cleaned_fixture(self):
         """