chore(shiny-sass): Remove comments

Author: gadenbuie

inst/www/shared/shiny_scss/shiny.bootstrap3.scss

@@ -10,7 +10,6 @@ $border-radius: $border-radius-base !default;
 $shiny-disconnected-bg:             mix($bg, $fg, 58%) !default;
 $shiny-table-na:                    mix($bg, $fg, 54%) !default;
 $shiny-error-validated-color:       mix($bg, $fg, 50%) !default;
-// TODO: what should this be? mix of primary and bg?
 $shiny-progress-text-bg-color:      #eef8ff !default;
 $shiny-input-panel-bg:              mix($bg, $fg, 96%) !default;
 $shiny-input-panel-border:          $border-width solid $border-color !default;

inst/www/shared/shiny_scss/shiny.bootstrap4.scss

@@ -4,7 +4,6 @@ $fg: $body-color !default;
 $shiny-disconnected-bg:             mix($bg, $fg, 58%) !default;
 $shiny-table-na:                    mix($bg, $fg, 54%) !default;
 $shiny-error-validated-color:       mix($bg, $fg, 50%) !default;
-// TODO: what should this be? mix of primary and bg?
 $shiny-progress-text-bg-color:      #eef8ff !default;
 $shiny-input-panel-bg:              mix($bg, $fg, 96%) !default;
 $shiny-input-panel-border:          $border-width solid $border-color !default;
@@ -29,6 +28,3 @@ $notification-content-action-color: map-get($theme-colors, "primary") !default;
 $datepicker-disabled-color:         $dropdown-link-disabled-color !default;
 
 $shiny-file-active-shadow: $custom-file-focus-box-shadow !default;
-
-// TODO: should this be changed to danger?
-//$shiny-error-color:                 red !default;