Remove sanity check for `None` value

Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
diff --git a/scripts/config.py b/scripts/config.py
index 491a43a..150078a 100755
--- a/scripts/config.py
+++ b/scripts/config.py
@@ -639,10 +639,6 @@
         if name in PSA_UNSTABLE_FEATURE:
             raise ValueError(f'Feature is unstable: \'{name}\'')
 
-        # If value is set to None correct it
-        if not value:
-            value = '1'
-
         if name not in self.settings:
             self.configfile.templates.append((name, '', '#define ' + name + ' '))