tag unused Cmd [-Wunused-parameter]

client/cmdlfhid.c

@@ -125,6 +125,7 @@ static bool sendTry(uint8_t fmtlen, uint32_t fc, uint32_t cn, uint32_t delay, ui
 //HID Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded)
 //print full HID Prox ID and some bit format details if found
 int CmdHIDDemod(const char *Cmd) {
+    (void)Cmd; // Cmd is not used so far
     //raw fsk demod no manchester decoding no start bit finding just get binary from wave
     uint32_t hi2 = 0, hi = 0, lo = 0;
 
@@ -599,6 +600,7 @@ int CmdLFHID(const char *Cmd) {
 }
 
 int CmdHelp(const char *Cmd) {
+    (void)Cmd; // Cmd is not used so far
     CmdsHelp(CommandTable);
     return 0;
 }