fix unused imports and other things that flutter analyze was complaining about

Author: MoralCode

lib/helpers.dart

@@ -2,7 +2,6 @@ import 'dart:async';
 import 'dart:math';
 import 'dart:typed_data';
 
-import '../internal/datatypes.dart';
 import 'package:csafe_fitness/csafe_fitness.dart';
 
 import 'models/workout.dart';
@@ -65,7 +64,7 @@ String durationToSplit(Duration d) {
   String millis = durSplit.last.substring(0, 1);
   // print(millis);
 
-  return "${d.inMinutes}:${time.last.padLeft(2, "0")}.${millis}";
+  return "${d.inMinutes}:${time.last.padLeft(2, "0")}.$millis";
 }
 
 //conversion functions for watts and split (from crewlab app)

lib/models/ergometer.dart

@@ -4,10 +4,8 @@ import 'package:c2bluetooth/c2bluetooth.dart';
 import '../internal/commands.dart';
 import '../internal/datatypes.dart';
 import 'package:csafe_fitness/csafe_fitness.dart';
-import 'package:c2bluetooth/enums.dart';
 import '../helpers.dart';
 import 'workout.dart';
-import '../data/workoutsummary.dart';
 import 'package:c2bluetooth/constants.dart' as Identifiers;
 import 'package:flutter_ble_lib_ios_15/flutter_ble_lib.dart';
 import 'package:rxdart/rxdart.dart';

test/helpers_test.dart

@@ -1,6 +1,5 @@
 import 'dart:typed_data';
 
-import '../lib/internal/datatypes.dart';
 import 'package:c2bluetooth/helpers.dart';
 import 'package:c2bluetooth/models/workout.dart';
 import 'package:flutter_test/flutter_test.dart';

test/internal/datatypes_test.dart

@@ -8,7 +8,7 @@ import 'package:flutter_test/flutter_test.dart';
 void main() {
   group('Tests for Concept2IntegerWithUnits', () {
     Uint8List dead = Uint8List.fromList([0x40, 0xDE, 0xAD]);
-    Uint8List adde = Uint8List.fromList([0x40, 0xAD, 0xDE]);
+    // Uint8List adde = Uint8List.fromList([0x40, 0xAD, 0xDE]);
 
     Uint8List deadbeef = Uint8List.fromList([0x40, 0xEF, 0xBE, 0xAD, 0xDE]);
 

test/workout_test.dart

@@ -1,7 +1,6 @@
 import 'package:c2bluetooth/enums.dart';
 import 'package:c2bluetooth/models/workout.dart';
 import 'package:flutter_test/flutter_test.dart';
-import 'package:c2bluetooth/models/workout.dart';
 
 void main() {
   group("Workout - ", () {