remove redundant 'return' from lib/redmine/twofa/totp.rb

git-svn-id: http://svn.redmine.org/redmine/trunk@20661 e93f8b46-1217-0410-a6f0-8f06a7374b81

Author: marutosi

lib/redmine/twofa/totp.rb

@@ -43,9 +43,9 @@ def verify_otp!(code)
         verified_at = totp.verify(code.to_s, drift_behind: allowed_drift, after: last_verified_at)
         if verified_at
           @user.update!(twofa_totp_last_used_at: verified_at)
-          return true
+          true
         else
-          return false
+          false
         end
       end