[Build] Fix leakage of buildtools dependency to all libraries (#20)

diff --git a/pom.xml b/pom.xml
index c55d9f4..ac7a297 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1304,7 +1304,7 @@
     <dependency>
       <groupId>org.apache.pulsar</groupId>
       <artifactId>buildtools</artifactId>
-      <version>${project.version}</version>
+      <version>${pulsar.version}</version>
       <scope>test</scope>
     </dependency>
 
@@ -1348,11 +1348,6 @@
       <artifactId>javax.annotation-api</artifactId>
       <scope>provided</scope>
     </dependency>
-    <dependency>
-      <groupId>org.apache.pulsar</groupId>
-      <artifactId>buildtools</artifactId>
-      <version>${pulsar.version}</version>
-    </dependency>
 
     <dependency>
       <groupId>org.slf4j</groupId>
@@ -2031,6 +2026,6 @@
       </snapshots>
     </repository>
   </repositories>
-  
+
 </project>