Remove cancel button in repo creation page (#21381)

templates/repo/create.tmpl

@@ -219,7 +219,6 @@
 						<button class="ui green button{{if not .CanCreateRepo}} disabled{{end}}">
 							{{.locale.Tr "repo.create_repo"}}
 						</button>
-						<a class="ui button" href="{{AppSubUrl}}/">{{.locale.Tr "cancel"}}</a>
 					</div>
 				</div>
 			</form>