去除多余依赖；更新layui2.7.4；

public/static/admin/css/public.css

@@ -1,4 +1,4 @@
-@import url("../../plugs/layui-v2.7.2/css/layui.css");
+@import url("../../plugs/layui-v2.7.4/css/layui.css");
 @import url("../../plugs/font-awesome-4.7.0/css/font-awesome.min.css");
 @import url("../css/iconfont.css");
 @import url('../../plugs/jq-module/city-picker/css/city-picker.css');

public/static/config-admin.js

@@ -9,7 +9,7 @@ require.config({
         "echarts": ["plugs/echarts/echarts.min"],
         "echarts-theme": ["plugs/echarts/echarts-theme"],
         "easy-admin": ["plugs/easy-admin/easy-admin"],
-        "layui": ["plugs/layui-v2.7.2/layui"],
+        "layui": ["plugs/layui-v2.7.4/layui"],
         "miniAdmin": ["plugs/lay-module/layuimini/miniAdmin"],
         "miniMenu": ["plugs/lay-module/layuimini/miniMenu"],
         "miniTab": ["plugs/lay-module/layuimini/miniTab"],

public/static/plugs/layui-v2.7.2/css/modules/code.css

@@ -1 +0,0 @@
-html #layuicss-skincodecss{display:none;position:absolute;width:1989px}.layui-code-view{display:block;position:relative;margin:10px 0;padding:0;border:1px solid #eee;border-left-width:6px;background-color:#fafafa;color:#333;font-family:Courier New;font-size:13px}.layui-code-h3{position:relative;padding:0 10px;height:40px;line-height:40px;border-bottom:1px solid #eee;font-size:12px}.layui-code-h3 a{position:absolute;right:10px;top:0;color:#999}.layui-code-view .layui-code-ol{position:relative;overflow:auto}.layui-code-view .layui-code-ol li{position:relative;margin-left:45px;line-height:20px;padding:0 10px;border-left:1px solid #e2e2e2;list-style-type:decimal-leading-zero;*list-style-type:decimal;background-color:#fff}.layui-code-view .layui-code-ol li:first-child{padding-top:10px}.layui-code-view .layui-code-ol li:last-child{padding-bottom:10px}.layui-code-view pre{margin:0}.layui-code-notepad{border:1px solid #0c0c0c;border-left-color:#3f3f3f;background-color:#0c0c0c;color:#c2be9e}.layui-code-notepad .layui-code-h3{border-bottom:none}.layui-code-notepad .layui-code-ol li{background-color:#3f3f3f;border-left:none}.layui-code-demo .layui-code{visibility:visible!important;margin:-15px;border-top:none;border-right:none;border-bottom:none}.layui-code-demo .layui-tab-content{padding:15px;border-top:none}

public/static/plugs/layui-v2.7.4/css/modules/code.css

@@ -0,0 +1 @@
+html #layuicss-skincodecss{display:none;position:absolute;width:1989px}.layui-code-view{display:block;position:relative;margin:10px 0;padding:0;border:1px solid #eee;border-left-width:6px;background-color:#fafafa;color:#333;font-family:Courier New;font-size:13px}.layui-code-title{position:relative;padding:0 10px;height:40px;line-height:40px;border-bottom:1px solid #eee;font-size:12px}.layui-code-title>.layui-code-about{position:absolute;right:10px;top:0;color:#b7b7b7}.layui-code-about>a{padding-left:10px}.layui-code-view>.layui-code-ol,.layui-code-view>.layui-code-ul{position:relative;overflow:auto}.layui-code-view>.layui-code-ol>li{position:relative;margin-left:45px;line-height:20px;padding:0 10px;border-left:1px solid #e2e2e2;list-style-type:decimal-leading-zero;*list-style-type:decimal;background-color:#fff}.layui-code-view>.layui-code-ol>li:first-child,.layui-code-view>.layui-code-ul>li:first-child{padding-top:10px}.layui-code-view>.layui-code-ol>li:last-child,.layui-code-view>.layui-code-ul>li:last-child{padding-bottom:10px}.layui-code-view>.layui-code-ul>li{position:relative;line-height:20px;padding:0 10px;list-style-type:none;*list-style-type:none;background-color:#fff}.layui-code-view pre{margin:0}.layui-code-dark{border:1px solid #0c0c0c;border-left-color:#3f3f3f;background-color:#0c0c0c;color:#c2be9e}.layui-code-dark>.layui-code-title{border-bottom:none}.layui-code-dark>.layui-code-ol>li,.layui-code-dark>.layui-code-ul>li{background-color:#3f3f3f;border-left:none}.layui-code-dark>.layui-code-ul>li{margin-left:6px}.layui-code-demo .layui-code{visibility:visible!important;margin:-15px;border-top:none;border-right:none;border-bottom:none}.layui-code-demo .layui-tab-content{padding:15px;border-top:none}