remove redundant trim op, comment update

gen_gdl90.go

@@ -133,8 +133,7 @@ func heartBeatSender() {
 }
 
 func parseInput(buf string) ([]byte, uint16) {
-	buf = strings.Trim(buf, "\r\n") // Remove newlines.
-	x := strings.Split(buf, ";")    // We want to discard everything before the first ';'.
+	x := strings.Split(buf, ";") // Discard everything after the first ';'.
 	if len(x) == 0 {
 		return nil, 0
 	}