Remove reference to tracer bean from spring boot docs (#9864)

Author: laurit

instrumentation/spring/spring-boot-autoconfigure/README.md

@@ -149,10 +149,6 @@ implementation("io.opentelemetry:opentelemetry-extension-annotations:OPENTELEMET
 
 #### OpenTelemetry Auto Configuration
 
-#### OpenTelemetry Tracer Auto Configuration
-
-Provides a OpenTelemetry tracer bean (`io.opentelemetry.api.trace.Tracer`) if one does not exist in the application context of the spring project. This tracer bean will be used in all configurations listed below. Feel free to declare your own OpenTelemetry tracer bean to overwrite this configuration.
-
 #### Spring Web Auto Configuration
 
 Provides auto-configuration for the OpenTelemetry RestTemplate trace interceptor defined in [opentelemetry-spring-web-3.1](../spring-web/spring-web-3.1). This auto-configuration instruments all requests sent using Spring RestTemplate beans by applying a RestTemplate bean post processor. This feature is supported for spring web versions 3.1+. [Spring Web - RestTemplate Client Span](#spring-web---resttemplate-client-span) show cases a sample client span generated by this auto-configuration. Check out [opentelemetry-spring-web-3.1](../spring-web/spring-web-3.1) to learn more about the OpenTelemetry RestTemplateInterceptor.