Revert "Fix poms so that modernizer doesn't fail on snapshot."

This reverts commit 70a3a4f. The
snapshot repository has now been added to the jclouds-project POM.
See commit 79d4b48 to jclouds/jclouds.

pom.xml

@@ -64,20 +64,6 @@
     </repository>
   </repositories>
 
-  <!-- For modernizer, which depends on jclouds-resources snapshot. -->
-  <pluginRepositories>
-    <pluginRepository>
-      <id>apache-snapshots</id>
-      <url>https://repository.apache.org/content/repositories/snapshots</url>
-      <releases>
-        <enabled>false</enabled>
-      </releases>
-      <snapshots>
-        <enabled>true</enabled>
-      </snapshots>
-    </pluginRepository>
-  </pluginRepositories>
-
   <modules>
     <module>elb</module>
     <module>iam</module>