fix: remove unused err code

Author: whoabuddy

contracts/dao/extensions/aibtc-token-faktory-dex.clar

@@ -12,7 +12,6 @@
   (define-constant ERR-FETCHING-BUY-INFO (err u1005)) ;; new, should be unreachable
   (define-constant ERR-FETCHING-SELL-INFO (err u1006)) ;; new, should be unreachable
   (define-constant ERR-TOKEN-NOT-AUTH (err u401))
-  (define-constant ERR-UNAUTHORIZED-CALLER (err u402))
 
   (define-constant FEE-RECEIVER 'ST3S2565C4DP2MGR3CMANMGYDCDA314Q25AQGR26R) ;; 'SMHAVPYZ8BVD0BHBBQGY5AQVVGNQY4TNHAKGPYP)
   (define-constant G-RECEIVER 'ST3CZY55VJE5P5DJAP5E58X123BZKMYDCNEZMRTV2) ;;'SM3NY5HXXRNCHS1B65R78CYAC1TQ6DEMN3C0DN74S)