refactor: remove some unnecessary configurations of Pagination

src/views/device/back/index.vue

@@ -52,7 +52,6 @@
         </el-row>
         <pagination
           :total="returnList.totalCount"
-          :page-sizes="[6]"
           :page.sync="returnList.params.pageNum"
           :limit.sync="returnList.params.pageSize"
           @pagination="getDevices"

src/views/external/camera/index.vue

@@ -93,7 +93,6 @@
           >无摄像头数据</div>
           <pagination
             :total="videoOption.totalCount"
-            :page-sizes="[6]"
             :page.sync="videoOption.params.pageNum"
             :limit.sync="videoOption.params.pageSize"
             @pagination="getCamera"

src/views/schedule/timeline/index.vue

@@ -185,7 +185,6 @@
       />
       <pagination
         :total="deviceOptions.totalCount"
-        :page-sizes="[5]"
         :page.sync="deviceOptions.params.pageNum"
         :limit.sync="deviceOptions.params.pageSize"
         @pagination="getDevices"