reverted static credentials usage

groovy-aws-sdk-util/src/main/groovy/agorapulse/libs/awssdk/util/AwsClientUtil.groovy

@@ -2,25 +2,18 @@ package agorapulse.libs.awssdk.util
 
 import com.amazonaws.ClientConfiguration
 import com.amazonaws.Protocol
-import com.amazonaws.SdkClientException
-import com.amazonaws.auth.AWSCredentials
 import com.amazonaws.auth.AWSCredentialsProvider
 import com.amazonaws.auth.AWSStaticCredentialsProvider
-import com.amazonaws.auth.AnonymousAWSCredentials
 import com.amazonaws.auth.BasicAWSCredentials
 import com.amazonaws.auth.DefaultAWSCredentialsProviderChain
 import com.amazonaws.client.builder.AwsSyncClientBuilder
 import com.amazonaws.client.builder.AwsClientBuilder.EndpointConfiguration
 import com.amazonaws.regions.Region
 import com.amazonaws.regions.RegionUtils
-import org.slf4j.Logger
-import org.slf4j.LoggerFactory
 
 @SuppressWarnings(['FactoryMethodName'])
 class AwsClientUtil {
 
-    private static final Logger LOGGER = LoggerFactory.getLogger(AwsClientUtil)
-
     static final String DEFAULT_REGION = 'us-east-1'
 
     static <C, B extends AwsSyncClientBuilder<B, C>> B configure(B builder, String serviceName, config, serviceConfig) {
@@ -166,15 +159,7 @@ class AwsClientUtil {
         }
 
         if (!config.accessKey || !config.secretKey) {
-            try {
-                // only fetch the credentials once when inititalized
-                AWSCredentials credentials = new DefaultAWSCredentialsProviderChain().getCredentials()
-                return new AWSStaticCredentialsProvider(credentials)
-            } catch(SdkClientException e) {
-                LOGGER.warn('Failed to obtain credentials from the chain. ' +
-                        'Please, configure grails.plugin.awssdk.accessKey and  grails.plugin.awssdk.secretKey ', e)
-                return new AWSStaticCredentialsProvider(new AnonymousAWSCredentials())
-            }
+            new DefaultAWSCredentialsProviderChain()
         } else {
             new AWSStaticCredentialsProvider(new BasicAWSCredentials(config.accessKey, config.secretKey))
         }