refactor(error_codes): remove unused NO_COMMIT_MSG error code

Lee-W · Lee-W · commit 3983b1bb399d · 2020-06-06T00:01:54.000+08:00
diff --git a/commitizen/error_codes.py b/commitizen/error_codes.py
@@ -21,7 +21,6 @@
 CUSTOM_ERROR = 12
 
 # Check
-NO_COMMIT_MSG = 13
 INVALID_COMMIT_MSG = 14
 
 # Changelog
