remove snapshot link (#769)

Author: SylvainJuge

README.md

@@ -20,8 +20,6 @@ We welcome your feedback! You can reach us by [opening a GitHub issue](https://g
 
 Latest release: [![Maven Central](https://img.shields.io/maven-central/v/co.elastic.otel/elastic-otel-javaagent?label=elastic-otel-javaagent)](https://mvnrepository.com/artifact/co.elastic.otel/elastic-otel-javaagent/latest)
 
-Latest snapshot: [![Sonatype Nexus](https://img.shields.io/nexus/s/co.elastic.otel/elastic-otel-javaagent?server=https%3A%2F%2Foss.sonatype.org&label=elastic-otel-javaagent)](https://oss.sonatype.org/service/local/artifact/maven/redirect?r=snapshots&g=co.elastic.otel&a=elastic-otel-javaagent&v=LATEST)
-
 ## Run
 
 Use the `-javaagent:` JVM argument with the path to agent jar.