Remove redundant int/hex user value 'is None' check

A valid int/hex user value can never be an empty string, so they test
can be simplified.

1 files changed, 1 insertions, 1 deletions

diff --git a/kconfiglib.py b/kconfiglib.py
index e002cc0..018fc0d 100644
--- a/kconfiglib.py
+++ b/kconfiglib.py
@@ -2810,7 +2810,7 @@ class Symbol(object):
             # or has an out-of-range user value.
             use_defaults = True
 
-            if vis and self.user_value is not None:
+            if vis and self.user_value:
                 user_val = int(self.user_value, base)
                 if has_active_range and not low <= user_val <= high:
                     num2str = str if base == 10 else hex