func_frame_trace: Remove bogus assertion.

The FRAME_TRACE function currently asserts if it sees
a MASQUERADE_NOTIFY. However, this is a legitimate thing
that can happen so asserting is inappropriate, as there
are no clear negative ramifications of such a thing. This
is adjusted to be like the other frames to print out
the subclass.

ASTERISK-30210 #close

Change-Id: I8ecbdcf17e35f64bdeab42868471f581ad1d1a56

funcs/func_frame_trace.c

@@ -341,8 +341,7 @@ static void print_frame(struct ast_frame *frame)
 			ast_verbose("SubClass: PVT_CAUSE_CODE\n");
 			break;
 		case AST_CONTROL_MASQUERADE_NOTIFY:
-			/* Should never happen. */
+			ast_verbose("SubClass: MASQUERADE_NOTIFY\n");
-			ast_assert(0);
 			break;
 		case AST_CONTROL_STREAM_TOPOLOGY_REQUEST_CHANGE:
 			ast_verbose("SubClass: STREAM_TOPOLOGY_REQUEST_CHANGE\n");