Remove setup variant for OTel agentless setup

Author: adinauer

platform-includes/performance/opentelemetry-setup/without-java-agent/java.mdx

@@ -1,12 +1,6 @@
 #### Initializing OpenTelemetry
 
-Our `sentry-opentelemetry-agentless` dependency also adds `opentelemetry-sdk-extension-autoconfigure` which takes care of configuring OpenTelemetry to work with Sentry. There's two ways to trigger it.
-
-1. Using a property on startup
-
-Add `-Dotel.java.global-autoconfigure.enabled=true` to the `java` command when starting your application.
-
-2. Using `AutoConfiguredOpenTelemetrySdk`
+Our `sentry-opentelemetry-agentless` dependency also adds `opentelemetry-sdk-extension-autoconfigure` which takes care of configuring OpenTelemetry to work with Sentry. You can configure it using `AutoConfiguredOpenTelemetrySdk`:
 
 ```java {tabTitle: Java}
 import io.opentelemetry.sdk.autoconfigure.AutoConfiguredOpenTelemetrySdk;