Removing duplicate URL tags from shared_sdks

Author: maigovannon

shared_sdk/pom.xml

@@ -27,7 +27,6 @@
     <packaging>jar</packaging>
     <name>AppEngine :: shared-sdk</name>
     <url>https://github.com/GoogleCloudPlatform/appengine-java-standard/</url>
-    <url>http://maven.apache.org</url>
     <properties>
       <maven.deploy.skip>true</maven.deploy.skip>
     </properties>

shared_sdk_jetty12/pom.xml

@@ -27,7 +27,6 @@
     <packaging>jar</packaging>
     <name>AppEngine :: shared-sdk Jetty12</name>
     <url>https://github.com/GoogleCloudPlatform/appengine-java-standard/</url>
-    <url>http://maven.apache.org</url>
     <properties>
       <maven.deploy.skip>true</maven.deploy.skip>
     </properties>

shared_sdk_jetty9/pom.xml

@@ -27,7 +27,6 @@
     <packaging>jar</packaging>
     <name>AppEngine :: shared-sdk Jetty9</name>
     <url>https://github.com/GoogleCloudPlatform/appengine-java-standard/</url>
-    <url>http://maven.apache.org</url>
     <properties>
       <maven.deploy.skip>true</maven.deploy.skip>
     </properties>