only print error when trying to enable non-existing carrier in UE

srsue/src/phy/phy_common.cc

@@ -850,11 +850,13 @@ void phy_common::enable_scell(uint32_t cc_idx, bool enable)
     if (scell_cfg[cc_idx].configured) {
       scell_cfg[cc_idx].enabled = enable;
     } else {
+      if (enable) {
         Error("Leaving SCell %s. cc_idx=%d has not been configured.\n",
               scell_cfg[cc_idx].enabled ? "enabled" : "disabled",
               cc_idx);
       }
     }
   }
+}
 
 } // namespace srsue