Use trashcan icon for remove review request (#13722)

Author: jpraet

templates/repo/issue/view_content/pull.tmpl

@@ -46,7 +46,7 @@
 
 								{{if .CanChange }}
 									<a href="#" class="ui poping up icon re-request-review {{if .Checked}}checked{{end}}" data-issue-id="{{$.Issue.ID}}" data-content="{{if .Checked}} {{$.i18n.Tr "repo.issues.remove_request_review"}} {{else}} {{$.i18n.Tr "repo.issues.re_request_review"}} {{end}}"  data-id="{{.ItemID}}" data-update-url="{{$.RepoLink}}/issues/request_review">
-										{{svg "octicon-sync"}}
+										{{if .Checked}} {{svg "octicon-trashcan"}} {{else}} {{svg "octicon-sync"}} {{end}}
 									</a>
 								{{end}}
 								{{svg (printf "octicon-%s" .Review.Type.Icon)}}

templates/repo/issue/view_content/sidebar.tmpl

@@ -70,7 +70,7 @@
 
 							{{if .CanChange}}
 								<a href="#" class="ui poping up icon re-request-review {{if .Checked}}checked{{end}}" data-content="{{if .Checked}} {{$.i18n.Tr "repo.issues.remove_request_review"}} {{else}} {{$.i18n.Tr "repo.issues.re_request_review"}} {{end}}" data-issue-id="{{$.Issue.ID}}"  data-id="{{.ItemID}}" data-update-url="{{$.RepoLink}}/issues/request_review">
-									{{svg "octicon-sync"}}
+									{{if .Checked}} {{svg "octicon-trashcan"}} {{else}} {{svg "octicon-sync"}} {{end}}
 								</a>
 							{{end}}
 							{{svg (printf "octicon-%s" .Review.Type.Icon)}}