Revert SigV4 Authentication support for http exporter (#1019) (#1040)

*Description of changes:*
This reverts SigV4 Exporter added in PR #1019 as it is unstable and is
blocking the current Java V2 release


By submitting this pull request, I confirm that my contribution is made
under the terms of the Apache 2.0 license.

Author: liustve

awsagentprovider/build.gradle.kts

@@ -41,12 +41,9 @@ dependencies {
   // Import AWS SDK v1 core for ARN parsing utilities
   implementation("com.amazonaws:aws-java-sdk-core:1.12.773")
   // Export configuration
-  implementation("io.opentelemetry:opentelemetry-exporter-otlp")
+  compileOnly("io.opentelemetry:opentelemetry-exporter-otlp")
   // For Udp emitter
   compileOnly("io.opentelemetry:opentelemetry-exporter-otlp-common")
-  // For HTTP SigV4 emitter
-  implementation("software.amazon.awssdk:auth:2.30.14")
-  implementation("software.amazon.awssdk:http-auth-aws:2.30.14")
 
   testImplementation("io.opentelemetry:opentelemetry-sdk-extension-autoconfigure")
   testImplementation("io.opentelemetry:opentelemetry-sdk-testing")

awsagentprovider/src/main/java/software/amazon/opentelemetry/javaagent/providers/AwsApplicationSignalsCustomizerProvider.java

@@ -51,7 +51,6 @@
 import java.util.Set;
 import java.util.logging.Level;
 import java.util.logging.Logger;
-import java.util.regex.Pattern;
 
 /**
  * This customizer performs the following customizations:
@@ -71,8 +70,6 @@
 public class AwsApplicationSignalsCustomizerProvider
     implements AutoConfigurationCustomizerProvider {
   static final String AWS_LAMBDA_FUNCTION_NAME_CONFIG = "AWS_LAMBDA_FUNCTION_NAME";
-  private static final String XRAY_OTLP_ENDPOINT_PATTERN =
-      "^https://xray\\.([a-z0-9-]+)\\.amazonaws\\.com/v1/traces$";
 
   private static final Duration DEFAULT_METRIC_EXPORT_INTERVAL = Duration.ofMinutes(1);
   private static final Logger logger =
@@ -124,16 +121,6 @@ static boolean isLambdaEnvironment() {
     return System.getenv(AWS_LAMBDA_FUNCTION_NAME_CONFIG) != null;
   }
 
-  static boolean isXrayOtlpEndpoint(String otlpEndpoint) {
-    if (otlpEndpoint == null) {
-      return false;
-    }
-
-    return Pattern.compile(XRAY_OTLP_ENDPOINT_PATTERN)
-        .matcher(otlpEndpoint.toLowerCase())
-        .matches();
-  }
-
   private boolean isApplicationSignalsEnabled(ConfigProperties configProps) {
     return configProps.getBoolean(
         APPLICATION_SIGNALS_ENABLED_CONFIG,
@@ -234,10 +221,6 @@ private SdkTracerProviderBuilder customizeTracerProviderBuilder(
         return tracerProviderBuilder;
       }
 
-      if (isXrayOtlpEndpoint(System.getenv(OTEL_EXPORTER_OTLP_TRACES_ENDPOINT_CONFIG))) {
-        return tracerProviderBuilder;
-      }
-
       // Construct meterProvider
       MetricExporter metricsExporter =
           ApplicationSignalsExporterProvider.INSTANCE.createExporter(configProps);
@@ -303,14 +286,6 @@ private SpanExporter customizeSpanExporter(
                 .build();
       }
     }
-    // When running OTLP endpoint for X-Ray backend, use custom exporter for SigV4 authentication
-    else if (spanExporter instanceof OtlpHttpSpanExporter
-        && isXrayOtlpEndpoint(System.getenv(OTEL_EXPORTER_OTLP_TRACES_ENDPOINT_CONFIG))) {
-      spanExporter =
-          new OtlpAwsSpanExporter(
-              (OtlpHttpSpanExporter) spanExporter,
-              System.getenv(OTEL_EXPORTER_OTLP_TRACES_ENDPOINT_CONFIG));
-    }
 
     if (isApplicationSignalsEnabled(configProps)) {
       return AwsMetricAttributesSpanExporterBuilder.create(