Remove unused statistics formatting methods and associated header includes from MyMesh class. Whoops.

examples/companion_radio/MyMesh.cpp

@@ -1612,20 +1612,6 @@ void MyMesh::enterCLIRescue() {
   Serial.println("========= CLI Rescue =========");
 }
 
-void MyMesh::formatStatsReply(char *reply) {
-  // Use StatsFormatHelper
-  StatsFormatHelper::formatCoreStats(reply, board, *_ms, _err_flags, _mgr);
-}
-
-void MyMesh::formatRadioStatsReply(char *reply) {
-  StatsFormatHelper::formatRadioStats(reply, _radio, radio_driver, getTotalAirTime(), getReceiveAirTime());
-}
-
-void MyMesh::formatPacketStatsReply(char *reply) {
-  StatsFormatHelper::formatPacketStats(reply, radio_driver, getNumSentFlood(), getNumSentDirect(), 
-                                       getNumRecvFlood(), getNumRecvDirect());
-}
-
 void MyMesh::checkCLIRescueCmd() {
   int len = strlen(cli_command);
   while (Serial.available() && len < sizeof(cli_command)-1) {