scanning: Remove obsolete TODOs

Bug: 1059779
Change-Id: I02bd38160961d061606f4ffd25334857c24146cc
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2583204
Commit-Queue: Jesse Schettler <jschettler@chromium.org>
Reviewed-by: Zentaro Kavanagh <zentaro@chromium.org>
Cr-Commit-Position: refs/heads/master@{#835753}

chromeos/components/scanning/resources/color_mode_select.html

@@ -7,7 +7,6 @@
     <select id="colorModeSelect" class="md-select"
         value="{{selectedColorMode::change}}" disabled="[[disabled]]"
         aria-labelledby="colorModeLabel">
-      <!-- TODO(jschettler): Determine how the color modes should be sorted. -->
       <template is="dom-repeat" items="[[colorModes]]" as="colorMode">
         <option value="[[colorMode]]"
             selected$="[[isDefaultColorMode_(colorMode)]]">

chromeos/components/scanning/resources/page_size_select.html

@@ -7,7 +7,6 @@
     <select id="pageSizeSelect" class="md-select"
         value="{{selectedPageSize::change}}" disabled="[[disabled]]"
         aria-labelledby="pageSizeLabel">
-      <!-- TODO(jschettler): Sort the page sizes. -->
       <template is="dom-repeat" items="[[pageSizes]]" as="pageSize">
         <option value="[[pageSize]]"
             selected$="[[isDefaultPageSize_(pageSize)]]">

chromeos/components/scanning/resources/resolution_select.html

@@ -7,7 +7,6 @@
     <select id="resolutionSelect" class="md-select"
         value="{{selectedResolution::change}}" disabled="[[disabled]]"
         aria-labelledby="resolutionLabel">
-      <!-- TODO(jschettler): Sort the resolutions. -->
       <template is="dom-repeat" items="[[resolutions]]" as="resolution">
         <option value="[[resolution]]"
             selected$="[[isDefaultResolution_(resolution)]]">

chromeos/components/scanning/resources/scan_settings_section.html

-<!-- TODO(jschettler): Update styling to match the spec. -->
 <style include="scanning-shared scanning-fonts">
   :host {
     align-items: center;

chromeos/components/scanning/resources/scanning_app.js

@@ -232,7 +232,6 @@ Polymer({
 
   /** @override */
   detached() {
-    // TODO(jschettler): Cancel any ongoing scan jobs.
     if (this.scanJobObserverReceiver_) {
       this.scanJobObserverReceiver_.$.close();
     }