delete aop dependency

brave-spring-boot-starter/pom.xml

@@ -40,11 +40,6 @@
             <artifactId>spring-boot-starter-web</artifactId>
             <optional>true</optional>
         </dependency>
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-aop</artifactId>
-            <optional>true</optional>
-        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents</groupId>
             <artifactId>httpclient</artifactId>