Remove duplicated test libraries in POM dependencies (#6430)

### Motivation
The removed test libraries were already defined in the parent pom

### Modification
Removed duplicated test libraries in POM dependencies

(cherry picked from commit 7f25add4)

managed-ledger/pom.xml

@@ -95,18 +95,6 @@
       <artifactId>slf4j-api</artifactId>
     </dependency>
 
-    <dependency>
-      <groupId>org.mockito</groupId>
-      <artifactId>mockito-core</artifactId>
-      <scope>test</scope>
-    </dependency>
-
-    <dependency>
-      <groupId>${project.groupId}</groupId>
-      <artifactId>buildtools</artifactId>
-      <version>${project.version}</version>
-      <scope>test</scope>
-    </dependency>
   </dependencies>
 
   <build>

pulsar-broker/pom.xml

@@ -279,13 +279,6 @@
       <artifactId>hppc</artifactId>
     </dependency>
 
-    <dependency>
-      <groupId>${project.groupId}</groupId>
-      <artifactId>buildtools</artifactId>
-      <version>${project.version}</version>
-      <scope>test</scope>
-    </dependency>
-
     <dependency>
       <groupId>${project.groupId}</groupId>
       <artifactId>pulsar-functions-api-examples</artifactId>

pulsar-client-tools-test/pom.xml

@@ -64,11 +64,6 @@
       <version>${project.version}</version>
       <scope>test</scope>
     </dependency>
-    <dependency>
-      <groupId>org.mockito</groupId>
-      <artifactId>mockito-core</artifactId>
-      <scope>test</scope>
-    </dependency>
   </dependencies>
   <build>
     <plugins>

pulsar-discovery-service/pom.xml

@@ -149,12 +149,5 @@
       <scope>test</scope>
       <type>test-jar</type>
     </dependency>
-
-    <dependency>
-      <groupId>${project.groupId}</groupId>
-      <artifactId>buildtools</artifactId>
-      <version>${project.version}</version>
-      <scope>test</scope>
-    </dependency>
   </dependencies>
 </project>

pulsar-io/hdfs2/pom.xml

@@ -45,11 +45,6 @@
       <artifactId>jackson-dataformat-yaml</artifactId>
     </dependency>
     
-  	<dependency>
-  		<groupId>org.testng</groupId>
-  		<artifactId>testng</artifactId>
-  		<scope>test</scope>
-  	</dependency>
   	<dependency>
   		<groupId>org.apache.hadoop</groupId>
   		<artifactId>hadoop-client</artifactId>

pulsar-io/hdfs3/pom.xml

@@ -51,11 +51,6 @@
   		<version>3.1.1</version>
   	</dependency>
 
-  	<dependency>
-  		<groupId>org.testng</groupId>
-  		<artifactId>testng</artifactId>
-  		<scope>test</scope>
-  	</dependency>
   </dependencies>
   
   <build>

pulsar-io/mongo/pom.xml

@@ -63,12 +63,6 @@
       <groupId>com.google.guava</groupId>
       <artifactId>guava</artifactId>
     </dependency>
-    <dependency>
-      <groupId>${project.parent.groupId}</groupId>
-      <artifactId>buildtools</artifactId>
-      <version>${project.parent.version}</version>
-      <scope>test</scope>
-    </dependency>
   </dependencies>
 
   <build>

pulsar-io/redis/pom.xml

@@ -75,12 +75,6 @@
             <artifactId>commons-collections</artifactId>
             <version>3.2.2</version>
         </dependency>
-        <dependency>
-            <groupId>${project.parent.groupId}</groupId>
-            <artifactId>buildtools</artifactId>
-            <version>${project.parent.version}</version>
-            <scope>test</scope>
-        </dependency>
         <dependency>
             <groupId>com.github.kstyrc</groupId>
             <artifactId>embedded-redis</artifactId>

pulsar-proxy/pom.xml

@@ -166,11 +166,5 @@
       <groupId>com.beust</groupId>
       <artifactId>jcommander</artifactId>
     </dependency>
-
-    <dependency>
-      <groupId>org.mockito</groupId>
-      <artifactId>mockito-core</artifactId>
-      <scope>test</scope>
-    </dependency>
   </dependencies>
 </project>

pulsar-sql/presto-pulsar/pom.xml

@@ -88,19 +88,6 @@
             <version>${presto.version}</version>
             <scope>provided</scope>
         </dependency>
-        <!-- test dependencies -->
-
-        <dependency>
-            <groupId>org.testng</groupId>
-            <artifactId>testng</artifactId>
-            <scope>test</scope>
-        </dependency>
-
-        <dependency>
-            <groupId>org.mockito</groupId>
-            <artifactId>mockito-core</artifactId>
-            <scope>test</scope>
-        </dependency>
 
     </dependencies>