Remove ClamAV requirement

contracts/management/commands/import_old_contracts.py

@@ -1642,6 +1642,7 @@ class Command(BaseCommand):
 
         if self.verbosity >= 2:
             self.stdout.write("\n")
+            
         self.import_all_contracts(git_dir)
 
         if self.verbosity >= 1:

registry/settings/base.py

@@ -236,8 +236,8 @@ DBSETTINGS_VALUE_LENGTH = 65536
 # ClamAV
 
 CLAMD_USE_TCP = True
-CLAMD_TCP_SOCKET = env.int("CLAMD_TCP_SOCKET")
-CLAMD_TCP_ADDR = env.str("CLAMD_TCP_ADDR")
+CLAMD_TCP_SOCKET = env.int("CLAMD_TCP_SOCKET", None)
+CLAMD_TCP_ADDR = env.str("CLAMD_TCP_ADDR", None)
 
 
 # Sentry