fix: Remove unnecessary implements Iterable (#21)

lib/ordered_set.dart

@@ -6,7 +6,7 @@ import 'dart:collection';
 /// [SplayTreeSet], it allows for several different elements with the same
 /// priority to be added. It also implements [Iterable], so you can iterate it
 /// in O(n).
-class OrderedSet<E> extends IterableMixin<E> implements Iterable<E> {
+class OrderedSet<E> extends IterableMixin<E> {
   // If the default implementation of `Set` changes from `LinkedHashSet` to
   // something else that isn't ordered we'll have to change this to explicitly
   // be `LinkedHashSet` (or some other data structure that preserves order).

scripts/analyze.sh

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-pub get
+dart pub get
 
 result=$(pub run dart_code_metrics:metrics .)
 if [ "$result" != "" ]; then

scripts/coverage.sh

@@ -1,12 +1,11 @@
 #!/bin/bash -xe
 
-pub get
+dart pub get
 
 dart test --coverage=coverage .
 
-pub run coverage:format_coverage \
+dart pub run coverage:format_coverage \
   --lcov \
   --in=coverage/test/ \
   --out=coverage/lcov.info \
-  --packages=.packages \
-  --report-on=lib
+  --report-on=lib

scripts/dartdoc.sh

@@ -1,4 +1,4 @@
 #!/usr/bin/env bash
 
-pub get
-pub run dartdoc --no-auto-include-dependencies --quiet
+dart pub get
+dart pub run dartdoc --no-auto-include-dependencies --quiet

scripts/format.sh

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-pub get
+dart pub get
 
 FORMAT_ISSUES=$(dart format --output=none --set-exit-if-changed .)
 if [ $? -eq 1 ]; then