MT#62063 deprecate `isOnHoldRequested()`

Deprecate because no users left.

Change-Id: Iba3fe74a560e5b097e4dee49e2cb40cb9a5a7004

apps/sbc/CallLeg.cpp

@@ -1436,14 +1436,6 @@ CallLeg::holdMethod CallLeg::updateHoldMethod(const AmSdp &sdp)
   return hold_method;
 }
 
-bool CallLeg::isOnHoldRequested(const AmSdp &sdp, holdMethod &method)
-{
-  if (isHoldRequest(sdp, (holdMethod&)method)) {
-    DBG("This request puts the call on hold\n");
-    return true;
-  }
-  return false;
-}
 bool CallLeg::retrieveAmSdp(const AmMimeBody &mSdp, AmSdp &sdp)
 {
   AmMimeBody t_sdp_body = mSdp;

apps/sbc/CallLeg.h

@@ -217,10 +217,7 @@ class CallLeg: public AmB2BSession
      * returns `holdMethod` based on given SDP.
      */
     holdMethod updateHoldMethod(const AmSdp &sdp);
-    /* check if this request assumes call to be put on hold,
-     * this in internal class'es implementation.
-     */
-    bool isOnHoldRequested(const AmSdp &sdp, holdMethod &hm);
+
     /* set AmSdp based on AmMimeBody */
     bool retrieveAmSdp(const AmMimeBody &mSdp, AmSdp &sdp);