perf: 处理员工管理邮箱不必填问题

src/main/webapp/resources/tpl/index/approvalFlow/user.html

@@ -407,7 +407,6 @@
 						<td class="text-center"
 							ng-class="{'has-error': userEmailError, 'has-success': userEmailSuccess}">
 							<input ng-model="newUser.userEmail" ng-pattern="/^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/"
-							ng-blur="emailValid(newUser.userEmail)"
 							name="newUserEmail" class="form-control input-sm" type="text"
 							placeholder="邮箱">
 						</td>