Delete unnecessary comments

icart_mini_description/package.xml

@@ -8,40 +8,7 @@
   <author email="[email protected]">Daiki Maekawa</author>
   <url type="website">http://wiki.ros.org/icart_mini_description</url>
   <license>BSD</license>
-
-
-  <!-- Url tags are optional, but mutiple are allowed, one per tag -->
-  <!-- Optional attribute type can be: website, bugtracker, or repository -->
-  <!-- Example: -->
-  <!-- <url type="website">http://wiki.ros.org/icart_mini_description</url> -->
-
-
-  <!-- Author tags are optional, mutiple are allowed, one per tag -->
-  <!-- Authors do not have to be maintianers, but could be -->
-  <!-- Example: -->
-  <!-- <author email="[email protected]">Jane Doe</author> -->
-
-
-  <!-- The *_depend tags are used to specify dependencies -->
-  <!-- Dependencies can be catkin packages or system dependencies -->
-  <!-- Examples: -->
-  <!-- Use build_depend for packages you need at compile time: -->
-  <!--   <build_depend>message_generation</build_depend> -->
-  <!-- Use buildtool_depend for build tool packages: -->
-  <!--   <buildtool_depend>catkin</buildtool_depend> -->
-  <!-- Use run_depend for packages you need at runtime: -->
-  <!--   <run_depend>message_runtime</run_depend> -->
-  <!-- Use test_depend for packages you need only for testing: -->
-  <!--   <test_depend>gtest</test_depend> -->
   <buildtool_depend>catkin</buildtool_depend>
-
-
-  <!-- The export tag contains other, unspecified, tags -->
   <export>
-    <!-- You can specify that this package is a metapackage here: -->
-    <!-- <metapackage/> -->
-
-    <!-- Other tools can request additional information be placed here -->
-
   </export>
 </package>