Remove checking OssCredential options

Author: cnblogs-dudu

src/Request/RequestContext.cs

@@ -16,16 +16,6 @@ public RequestContext(IOptions<OssCredential> credentialOptions, ClientConfigura
         {
             OssCredential = credentialOptions.Value;
             ClientConfiguration = config;
-            
-            if(string.IsNullOrWhiteSpace(OssCredential.AccessKeyId))
-            {
-                throw new ArgumentNullException(nameof(OssCredential.AccessKeyId));
-            }
-
-            if (string.IsNullOrWhiteSpace(OssCredential.AccessKeySecret))
-            {
-                throw new ArgumentNullException(nameof(OssCredential.AccessKeySecret));
-            }
         }
         /// <summary>
         /// 客户端配置