chore[litemall-core]: 删除没有用到的代码

litemall-core/src/main/java/org/linlinjava/litemall/core/util/YmlPropertyFactory.java

-package org.linlinjava.litemall.core.util;
-
-import org.springframework.boot.env.PropertySourcesLoader;
-import org.springframework.core.env.PropertySource;
-import org.springframework.core.io.Resource;
-import org.springframework.core.io.support.EncodedResource;
-import org.springframework.core.io.support.PropertySourceFactory;
-
-import java.io.IOException;
-
-/**
- * 某些情况下外部依赖导致 yaml 配置未能正确注入时，@PropertySource(value = {"classpath:application-wx.yaml"}, factory = YmlPropertyFactory.class) 手动注入配置文件
- */
-public class YmlPropertyFactory implements PropertySourceFactory {
-    @Override
-    public PropertySource<?> createPropertySource(String name, EncodedResource resource) throws IOException {
-        return name != null ? new PropertySourcesLoader().load(resource.getResource(), name, null) : new PropertySourcesLoader().load(
-                resource.getResource(), getNameForResource(resource.getResource()), null);
-    }
-
-    private static String getNameForResource(Resource resource) {
-        String name = resource.getDescription();
-        if (!org.springframework.util.StringUtils.hasText(name)) {
-            name = resource.getClass().getSimpleName() + "@" + System.identityHashCode(resource);
-        }
-        return name;
-    }
-}