removing manifest

manifest.xml

-<package>
-  <description brief="fcl">
-
-     fcl
-
-  </description>
-  <author>Jia Pan</author>
-  <license>BSD</license>
-  <review status="unreviewed" notes=""/>
-  <url>http://ros.org/wiki/fcl</url>
-
-  <depend package="common_rosdeps"/>
-  <rosdep name="libccd" />
-  <rosdep name="octomap" />
-
-  <export>
-    <cpp cflags="-I${prefix}/include" lflags="-Wl,-rpath,${prefix}/build/lib -L${prefix}/build/lib -lfcl"/>
-  </export>
-
-</package>