remove incorrect or unnecessary URL tag (#2099)

dolphinscheduler-common/pom.xml

@@ -25,7 +25,7 @@
 	</parent>
 	<artifactId>dolphinscheduler-common</artifactId>
 	<name>dolphinscheduler-common</name>
-	<url>http://maven.apache.org</url>
+
 	<packaging>jar</packaging>
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

dolphinscheduler-dao/pom.xml

@@ -25,7 +25,7 @@
 	</parent>
 	<artifactId>dolphinscheduler-dao</artifactId>
 	<name>${project.artifactId}</name>
-	<url>http://maven.apache.org</url>
+
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 	</properties>

dolphinscheduler-remote/pom.xml

@@ -12,8 +12,6 @@
     <artifactId>dolphinscheduler-remote</artifactId>
 
     <name>dolphinscheduler-remote</name>
-    <!-- FIXME change it to the project's website -->
-    <url>http://www.example.com</url>
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

dolphinscheduler-server/pom.xml

@@ -25,7 +25,7 @@
 	</parent>
 	<artifactId>dolphinscheduler-server</artifactId>
 	<name>dolphinscheduler-server</name>
-	<url>http://maven.apache.org</url>
+
 	<packaging>jar</packaging>
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>