Remove brave-instrumentation-benchmarks from brave-bom since this artifact is not published to Maven Central (#1446)

Closes #1445

Signed-off-by: Andriy Redko <[email protected]>

Author: reta

brave-bom/pom.xml

@@ -102,11 +102,6 @@
         <artifactId>brave-context-slf4j</artifactId>
         <version>${project.version}</version>
       </dependency>
-      <dependency>
-        <groupId>${project.groupId}</groupId>
-        <artifactId>brave-instrumentation-benchmarks</artifactId>
-        <version>${project.version}</version>
-      </dependency>
       <dependency>
         <groupId>${project.groupId}</groupId>
         <artifactId>brave-instrumentation-dubbo</artifactId>