Revert "* Export SetPas2JSGetFileSrcAttrCallBack"

This reverts commit 0053cec8809421efc739d7f2e5610fa7c966e61a.

utils/pas2js/pas2jslib.pp

@@ -18,8 +18,7 @@ exports
   SetPas2JSUnitAliasCallBack,
   SetPas2JSCompilerLogCallBack,
   GetPas2JSCompilerLastError,
-  SetPas2JSLogEncoding,
-  SetPas2JSGetFileSrcAttrCallBack;
+  SetPas2JSLogEncoding;
 
 end.