Remove error constants.

devices/geiger/gqgmc.go

@@ -116,31 +116,6 @@ const (
 	cmdTurnOffPwr = "<POWEROFF>>"
 )
 
-const (
-	errOpen                  = "Failed to open USB port"
-	errFirmware              = "GQ GMC has older firmware.  Some commands may not work."
-	errVersion               = "Failed to read the version number of the firmware"
-	errSerialNumber          = "Failed to read the serial number "
-	errCPM                   = "Failed to read the counts per minute "
-	errCPS                   = "Failed to read the counts per second "
-	errAutoCPS               = "Failed to read auto counts per second "
-	errCFG                   = "Failed to get configuration data "
-	errEraseCFG              = "Failed to erase configuration data "
-	errUpdateCFG             = "Failed to update configuration data "
-	errClear                 = "Failed to clear USB input buffer. You should power cycle GQ GMC."
-	errBatteryVoltage        = "Failed to read the battery voltage "
-	errHistoryData           = "Failed to read the history data "
-	errHistoryDataLengthFmt  = "Requested data length of the history command cannot exceed %d bytes"
-	errHistoryDataAddressFmt = "Address of the history command cannot exceed %d bytes"
-	errHistoryDataOverrunFmt = "History data length added to the address cannot exceed %d bytes"
-	errYear                  = "Failed to set year"
-	errMonth                 = "Failed to set month"
-	errDay                   = "Failed to set day"
-	errHour                  = "Failed to set hour"
-	errMinute                = "Failed to set minute"
-	errSecond                = "Failed to set second"
-)
-
 // GQGMCCounter is a GQ GMC Counter
 type GQGMCCounter struct {
 	port   *serial.Port